Yap, F. A. (1977). A comparative study of Philippine lexicons. Institute of National Language, Department of Education and Culture.
Tohutoru Kātū Chicago (17th ed.)Yap, Fe Aldave. A Comparative Study of Philippine Lexicons. [Manila]: Institute of National Language, Department of Education and Culture, 1977.
Tohutoro MLA (9th ed.)Yap, Fe Aldave. A Comparative Study of Philippine Lexicons. Institute of National Language, Department of Education and Culture, 1977.
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