Noor Salim. “Study of Polder System for Flood Control In Kembang Residential Area, Bondowoso Regency, Indonesia”. International Journal of Advances in Scientific Research and Engineering (IJASRE), ISSN:2454-8006, DOI: 10.31695/IJASRE 4, no. 10 (October 5, 2018): 137–145. Accessed May 3, 2024. https://ijasre.net/index.php/ijasre/article/view/737.