Suwarsit, Suwarsit, Ali Abdullah, and Suherman Suherman. “Nickel Ore Export Restriction Policy: Implementation of Sanction Decisions of the World Trade Organization”. Migration Letters 21, no. 3 (January 17, 2024): 321–332. Accessed July 14, 2024. https://migrationletters.com/index.php/ml/article/view/6577.