Suwarno, Windratmo. “The Challenge of Indonesian Diplomacy Against Palm Oil Discrimination”. Jurnal Ilmiah Hubungan Internasional 15, no. 2 (December 19, 2019): 197–212. Accessed April 29, 2024. https://journal.unpar.ac.id/index.php/JurnalIlmiahHubunganInternasiona/article/view/3416.