Mulyati, Ely, and Dessy Amelia. 2025. “The Effect of the Number of Work Shifts for Erection Box Girder Using Launching Gantry on the Cost and Implementation Time in the Medan-Binjai II Railway Line Project”. BANDAR: JOURNAL OF CIVIL ENGINEERING 7 (2):153-61. https://doi.org/10.31605/bjce.v7i2.5546.