Lubis, Mawar Winona. “The Effect of Multilateralism, Regionalism, and Open Regionalism Towards Exports: ASEAN-5 Study Case”. Journal of Developing Economies 1, no. 2 (December 24, 2016): 76–88. Accessed August 30, 2024. https://e-journal.unair.ac.id/JDE/article/view/3293.