Jocano, F. L. (1993). Asal: The expressive core of Filipino value system. Punlad Research House.
Lua i Stíl Chicago (17ú heag.)Jocano, Felipe Landa. Asal: The Expressive Core of Filipino Value System. Quezon City: Punlad Research House, 1993.
Lua MLA (9ú heag.)Jocano, Felipe Landa. Asal: The Expressive Core of Filipino Value System. Punlad Research House, 1993.
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