Martin, Ali, Ismiyatun Ismiyatun, and Saadatul Musthoifiyah. “The Impact of the Indonesian Nickel Industry Downstreaming Policy Especially”. Lentera Negeri 7, no. 1 (July 18, 2026): 836–850. Accessed September 7, 2026. http://lentera.eloracenter.org/lentera/article/view/259.