Erni Yulianti, Eko Prasetyo. OPTIMIZATION OF RETENTION POND IN FLOOD CONTROL EFFORTS IN PEKANBARU (URBAN FLOOD SYSTEM IMPROVEMENT PROJECT). IJSS [Internet]. 2024 Feb. 13 [cited 2025 Jul. 5];3(5):561-80. Available from: https://mail.bajangjournal.com/index.php/IJSS/article/view/7425