Balinado, Lloyd O., Sheila Marie D. Bahia, Rizza Mae Manzano, and Joshua Jerro Cuibillas. 2019. “Perceptions on the Water Quality of Marikina River of Selected Riverbank Residents of Barangays Manggahan and Santolan, Pasig City, Philippines”. Asia Pacific Higher Education Research Journal (APHERJ) 6 (1). https://po.pnuresearchportal.org/ejournal/index.php/apherj/article/view/1317.