Don Ramli, D. R., Aiyub, K., & Arifin, K. (2016). Social Return on Investment (SROI) Framework for Measuring the Real Value of Sungai Muda Flood Mitigation Program. GEOGRAFI, 4(2), 92-99. https://ejournal.upsi.edu.my/index.php/GEOG/article/view/1938