Julisman, Iwan, Aleksander Purba, and Dikpride Despa. “Rencana Induk Pengembangan Sistem Penyediaan Air Minum”. Jurnal Profesi Insinyur Universitas Lampung 4, no. 1 (June 2, 2023): 19–24. Accessed June 27, 2025. https://jpi.eng.unila.ac.id/index.php/ojs/article/view/93.