Arif Harahap, Faiz, Ervin Nurhayati, and Agus Ahyar. “Studi Kehilangan Air Pada DMA Perum III Di Wilayah Pelayanan Pontianak Timur Perumda Air Minum Tirta Khatulistiwa”. Envirotek : Jurnal Ilmiah Teknik Lingkungan 15, no. 2 (October 30, 2023): 129–135. Accessed May 12, 2024. https://envirotek.upnjatim.ac.id/index.php/envirotek/article/view/274.