Sunarsih S, Sasongko DP, Sutrisno S. Process Improvement on Domestic Wastewater Treatment Stabilization Ponds by Using Mathematical Optimization Approach. MATEMATIKA [Internet]. 2019 Jul. 31 [cited 2024 Apr. 20];35(2):171-6. Available from: https://matematika.utm.my/index.php/matematika/article/view/1157