erza, erza aldy maulana. “TA PERENCANAAN SALURAN DRAINASE JALAN MAYOR POLISI ZAINAL ARIFIN BALIKPAPAN”. Jurnal Tugas Akhir Teknik Sipil, Vol. 3, no. 1, Aug. 2019, pp. 126 -35, https://ojs.poltekba.ac.id/ojs/index.php/jutateks/article/view/170.