Pasa, Arturo E., and Teodoro R. Villanueva. “The Water Yield of Molawin Watershed As Influenced by Rainfall, Physiographic and Anthropogenic Factors”. Annals of Tropical Research 20 (September 10, 1998): 50–57. Accessed May 8, 2025. https://atr.vsu.edu.ph/article/view/554.