YEBRON, F. A. Are unschooled indigenous people schooled in mathematics?. The Mindanawan Journal of Mathematics, [S. l.], v. 2, n. 1, p. 2–10, 2011. Disponível em: https://journals.msuiit.edu.ph/tmjm/article/view/12. Acesso em: 18 oct. 2024.