Oliver Valentine Eboy, and Jennifer Chan Kim Lian. “APPLICATION OF GIS IN IDENTIFYING POTENTIAL SITE FOR RIVER TOURISM ACTIVITIES ALONG THE PETAGAS RIVER”. Elementary Education Online 20, no. 4 (December 19, 2023): 743–752. Accessed December 22, 2024. https://ilkogretim-online.org/index.php/pub/article/view/5387.