Sitorus, F. R. ., F. . Ilfan, and W. L. C. . Hutagalung. “Optimalisasi Desain Instalasi Pengolahan Air Limbah Tempat Pemrosesan Akhir Talang Gulo Lama”. Jurnal Engineering, vol. 2, no. 1, Jan. 2020, pp. 50-53, https://online-journal.unja.ac.id/JurnalEngineering/article/view/9161.