Tupas, R. F. (1999). The end of bilingual education in the Philippines. Public Policy.
Lua i Stíl Chicago (17ú heag.)Tupas, Ruanni F. "The End of Bilingual Education in the Philippines." Public Policy 1999.
Lua MLA (9ú heag.)Tupas, Ruanni F. "The End of Bilingual Education in the Philippines." Public Policy, 1999.
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