“Analysis Of The Strength Of Ect-15 Gantry Crane When Used In Kijing Port, Pontianak, West Kalimantan”. Zona Laut Jurnal Inovasi Sains Dan Teknologi Kelautan, vol. 2, no. 1, Mar. 2021, pp. 25-29, https://doi.org/10.62012/zl.v2i1.13570.