TAWAGON, Manuel. THE PENGAMPONG: ITS GROWTH, FORMATION AND DEVELOPMENT. Mindanao Journal, [S. l.], v. 16, n. 1-4, p. 21–55, 2025. Disponível em: https://msu-mindanaojournal.com/index.php/ojs/article/view/295.. Acesso em: 5 mar. 2026.