1. Azores, F. M. (1967).A preliminary investigation of the phenomenon of language change in the Philippines. Unpublished master’s thesis, Ateneo de Manila University.
2. Bautista, M. L. S. (1975). A model of bilingual competence based on an analysis of Tagalog-English code switching.Philippine Journal of linguistics, 8 (1), 51–89.
3. Bautista, M. L. S. (1979).Patterns of speaking in Pilipino radio dramas: A sociolinguistic analysis. Tokyo: Institute for the Study of Languages and Cultures of Asia and Africa, Tokyo University for Foreign Studies.
4. Bautista, M. L. S. (1980[1974]).The Filipino bilingual’s linguistic competence: A model based on an analysis of Tagalog-English code switching. Pacific Linguistics Series C-59. Canberra: Australian National University. Published version of the dissertation submitted to the Ateneo de Manila University-Philippine Normal College Consortium for a Ph.D. in Linguistics, 1974.
5. Bautista, M. L. S. (1989). Code switching studies in the Philippines. In B. P. Sibayan & A. Gonzalez, FSC (Eds.), [Special Issue on Sociolinguistic Studies in the Philippines].International Journal of the Sociology of Language, 88, 19–32.