1.
Situmorang H. The Effect of the Ban on Nickel Exports on the Economic Profitability of PT Vale Indonesia, Tbk from 2015 - June 2020. Fundamental; Management; [Internet]. 2021Apr.29 [cited 2024May2];6(1):73 -82. Available from: http://ejournal.uki.ac.id/index.php/jm/article/view/2834