Helga, J., Y. Handayati, and A. Nizar. “STRATEGY TO REDUCE COAL HAULING CYCLE TIME TO INCREASE THE PRODUCTIVITY IN PT ADARO INDONESIA”. JPIM (Jurnal Penelitian Ilmu Manajemen), vol. 8, no. 2, June 2023, pp. 266-82, doi:10.30736/jpim.v8i2.1605.