Kristiyanto, Hery, and Suryanto Suryanto. “ANALISIS KEBUTUHAN U-DITCH DAN BUIS BETON SEBAGAI SARANA DRAINASE GANG”. Jurnal Teknik Sipil 12, no. 1 (February 1, 2017): 8 - 22. Accessed May 13, 2024. https://jurnal.ucy.ac.id/index.php/jts/article/view/830.