“Perencanaan Instalasi Pengolahan Air Limbah Skala Kawasan dengan Filter Botol Plastik Bekas” (2021) Indonesian Journal of Engineering (IJE), 1(2), pp. 73–84. Available at: https://ejournal.ununtb.ac.id/index.php/ije/article/view/26 (Accessed: 19 March 2026).