Lendio, Jio Marnn, Marvin Batiancela, Nympha Branzuela, Leo Ong, and Dernie Olguera. “GIS Modelling of Karstification Potential of Samal Island, Davao Del Norte”. International Journal of Interdisciplinary Viewpoints 1, no. 5 (August 30, 2025): 663–671. Accessed December 5, 2025. https://viewpoints.edukar.net/index.php/ijiv/article/view/44.