Philippines. Department of Education, Culture and Sports. Bureau of Secondary Education. (1993). Manual of information on secondary education. BEE, Staff Development Division.
Παραπομπή σε μορφή Chicago (17η εκδ.)Philippines. Department of Education, Culture and Sports. Bureau of Secondary Education. Manual of Information on Secondary Education. Pasig, M.M: BEE, Staff Development Division, 1993.
Παραπομπή σε μορφή MLA (9th εκδ.)Philippines. Department of Education, Culture and Sports. Bureau of Secondary Education. Manual of Information on Secondary Education. BEE, Staff Development Division, 1993.
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