“ANALISIS PENGARUH BACK WATER (AIR BALIK) TERHADAP BANJIR SUNGAI RANGKUI KOTA PANGKALPINANG”. FROPIL (Forum Profesional Teknik Sipil), vol. 3, no. 2, Dec. 2015, pp. 131-4, https://doi.org/10.33019/fropil.v3i2.1221.