Estremera M, Balbuena S, Balbuena P. Reconstructing the etymology of Philippine numerals’ protolanguage: a socio-phonemic approach. JCPAS [Internet]. 2025 Nov. 6 [cited 2026 Oct. 17];3(4). Available from: https://journals.eikipub.com/index.php/jcpas/article/view/658