Indriyani, Cindy, Siti Arbaynah, Ananda Putra Wijaya, Lusi Oktaviani, Fadhilah Yumna, Norashida Othman, Sachnaz Desta Oktarina, and Rahma Anisa. “Optimization of Fuzzy C-Means Clustering With Particle Swarm Optimization on Socioeconomic Indicators of ASEAN Countries”. Indonesian Journal of Statistics and Its Applications 9, no. 2 (December 30, 2025): 274–288. Accessed January 10, 2026. https://journal-stats.ipb.ac.id/index.php/ijsa/article/view/1300.