Almuntadzar I., MaarifM. S., and BagaL. M. “STRATEGY TO IMPROVE LABOR PRODUCTIVITY IN PT FREEPOT INDONESIA’S UNDERGROUND MINING PROJECT”.
Jurnal Aplikasi Bisnis Dan Manajemen (JABM)
, Vol. 7, no. 2, May 2021, p. 241, doi:10.17358/jabm.7.2.241.