Aisyah, Adinda, and Shannaz Mutiara Deniar. “Evaluating the Effectiveness of Sister Province Cooperation: A Case Study in Yogyakarta and Gangwon-Do”. Journal of Humanities and Social Sciences (JHASS) 7, no. 1 (April 27, 2025): 10-18. Accessed May 22, 2026. https://lamintang.org/journal/index.php/jhass/article/view/816.