Manapat, R. (2011). Mathematical ideas in early Philippine society: Posthumous essay. Philippine Studies: Historical and Ethnographic Viewpoints.
Παραπομπή σε μορφή Chicago (17η εκδ.)Manapat, Ricardo. "Mathematical Ideas in Early Philippine Society: Posthumous Essay." Philippine Studies: Historical and Ethnographic Viewpoints 2011.
Παραπομπή σε μορφή MLA (9th εκδ.)Manapat, Ricardo. "Mathematical Ideas in Early Philippine Society: Posthumous Essay." Philippine Studies: Historical and Ethnographic Viewpoints, 2011.
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