Fahmi, Muhammad, and Toriq Arif Ghuzdewan. “Productivity Analysis PC-300 and PC-400 in Earthworks at a Gold Mining Project in Indonesia”. Journal of the Civil Engineering Forum 9, no. 3 (July 24, 2023): 343-356. Accessed November 26, 2024. https://journal.ugm.ac.id/v3/JCEF/article/view/6600.