Muthahharah, Isma, and Zakiyah Mar'ah. “Clustering Biplot on Tourist Visits in Indonesia”. International Journal of Engineering and Computer Science Applications (IJECSA) 3, no. 1 (March 1, 2024): 43–50. Accessed July 5, 2025. https://journal.universitasbumigora.ac.id/IJECSA/article/view/3890.