A Theoretically and Comparatively Informed Description of Yogad Morphology (Koren, 2022)
Koren, L. (2022). A theoretically and comparatively informed description of Yogad morphology. (Master's thesis). Carleton University, Canada.
The Future of Yogad: An Appreciative Inquiry on Mother Tongue-Based Multilingual Education Classroom Practices in the Philippines (Quirante, 2018)
Quirante, C. (2018). The future of Yogad: An appreciative inquiry on Mother Tongue-Based Multilingual Education classroom practices in the Philippines. (Master's thesis). Carleton University, Canada.
Yogad Toponyms: The Stories of Place Names in Echague (Ruma, 2018)
Ruma, M. P. (2018). Yogad toponyms: The stories of place names in Echague. (Unpublished undergraduate thesis). University of the Philippines, Los Baños.
Yogad in Philippines (Joshua Project, 2017)
Joshua Project. (2017). Yogad in Philippines. Retrieved from https://joshuaproject.net/people_groups/16047/RP
Yogad Folk Songs of Echague: Reflections of Life and Love (Sabio, 2016)
Sabio, D. G. (2016). Yogad folk songs of Echague: Reflections of life and love, The Asian Conference on Literature, Librarianship & Archival Science. Philippines: The IAFOR Paper Archive.
Folk Christianity among the Yogads of Echague, Isabela, 1918-2003 (Alindada, 2012)
Alindada, L. J. A. (2012). Folk Christianity among the Yogads of Echague, Isabela, 1918-2003. (Unpublished undergraduate thesis). University of the Philippines, Baguio.
The Mother Tongue Proficiency of the Yogads (Grande, 2008)
Grande, E. J. (2008). The mother tongue proficiency of the Yogads. UP Los Baños Journal, 6(1), 43-49.
Investigating Language Endangerment among the Yogad Constituents of Ugad High School in Echague, Isabela, Philippines (Grande, 2008)
Grande, E. J. (2008). Investigating language endangerment among the Yogad constituents of Ugad High School in Echague, Isabela, Philippines. (Unpublished master's thesis). University of the Philippines, Los Baños.
Yogads and Ilocanos: A Study on Ethnocentrism and Prejudice (Cadabuna and Lee, 2007)
Cadabua, M. J. and Lee, S. A. (2007). Yogads and Ilocanos; A study on ethnocentrism and prejudice. (Unpublished undergraduate thesis). University of the Philippines, Baguio.
Yogad Rituals and Festivals in Isabela: Their Implication to Development (Toquero, 2005)
Toquero, E. S. (2005). Yogad rituals and festivals in Isabela: Their implication to development. (Unpublished doctoral dissertation). University of La Salette, Santiago City, Isabela.
A Dictionary of Yogad (Davis and Mesa, 2000)
Davis, P. W. and Mesa, A. D. (2000). A dictionary of Yogad. München: LINCOM Europa.
The Grammar of Yogad (Davis, Baker, Spitz, & Baek, 1998)
Davis, P. W., Baker, J. W., Spitz, W. L., & Baek, M. (1998). The grammar of Yogad. München: LINCOM Europa.
The Correlates of Cultural Prevalence: The Case of the Yogads of Jones, Isabela (Manaligod, 1995)
Manaligod, T. B. (1995). The correlates of cultural prevalence: The case of the Yogads of Jones, Isabela. (Unpublished doctoral dissertation). Centro Escolar University, Manila.
The ay Construction in Yogad (Baek, 1994)
Baek, M. (1994). The ay construction in Yogad. Paper presented to the Linguistic Association of the Southwest, October 1994, Houston, Texas.
Acculturation among the Yogads: A Study on Culture Change (Zulueta, 1991)
Zulueta, H. D. (1991). Acculturation among the Yogads: A study on culture change. (Unpublished doctoral dissertation). Centro Escolar University, Manila.
Yogad Homeland (Quevedo, 1990)
Quevedo, M. T. (1990). Yogad homeland. (Unpublished master's thesis). University of the Philippines, Quezon City.
Child Bearing and Child Rearing Practices among the Yogads (Macutay, 1989)
Macutay, M. D. (1989). Child bearing and child rearing practices among the Yogads. (Unpublished master's thesis). Isabela State University, Echague, Isabela.
The Folk Literature of the Yogad: An Analysis / Ang Panitikang Bayan ng mga Yogad: Isang Pagsusuri (Galot, 1988)
Galot, G. L. (1988). Ang panitikang bayan ng mga Yogad: Isang pagsusuri. (Unpublished master's thesis). Saint Mary's University, Bayombong Nueva Vizcaya.
Socio-cultural Analysis of the Yogad of Echague, Isabela: A Case Study (Karganilla, 1987)
Karganilla, O. A. (1987). Socio-cultural analysis of the Yogad of Echague, Isabela: A case study. (Unpublished doctoral dissertation). Centro Escolar University, Manila, Philippines.
The Superstitious Beliefs and Practices of the People of the Three Selected Towns of Isabela: Its Implication to Educational Development (Sola, 1985)
Sola, N. (1985). The superstitious beliefs and practices of the people of the three selected towns of Isabela: Its implication to educational development. (Unpublished master's thesis). St. Paul University, Cagayan.
Ethno-Agricultural Communities: Focus on Yogad, PCCARRD-ISU Research Terminal Report (Adaci, 1984)
Adaci, T. B. (1984). Ethno-agricultural communities: Focus on Yogad, PCCARRD-ISU research terminal report. (Unpublished report). Isabela State University .
Ethnic Religious Beliefs in Relation to Family Planning: The Yogad Case (Luga, 1982)
Luga, A. B. (1982). Ethnic religious beliefs in relation to family planning: The Yogad case. (Unpublished master's thesis). Isabela State University, Echague, Isabela.
A Segment of Yogad Grammar (Galang, 1974)
Galang, C. L. (1974). A segment of Yogad grammar. (Unpublished master's thesis). Philippine Normal College, Manila.
Notes on Yogad (Healey, 1958)
Healey, A. (1958). Notes on Yogad. In Studies in Philippine linguistics, 77-82. Sydney: University of Australia.
First Primer: Yogad (Healey & Healey, 1956)
Healey, A. & Healey, M. (1956). First primer: Yogad. Summer Institute of Linguistics
Yogad, Echague Linguistic Questionnaire (Newell, 1954)
Newell, L. E. (1954). Yogad, Echague linguistic questionnaire. Summer Institute of Linguistics. https://www.sil.org/resources/archives/80182
Ethnographic Study of the Yogads of Isabela (Galang, 1935)
Galang, R. E. (1935). Ethnographic study of the Yogads of Isabela. Manila: Bureau of Printing.