Gubu, La, Dedi Rosadi, and Abdurakhman. “Robust Mean–Variance Portfolio Selection Using Cluster Analysis: A Comparison Between Kamila and Weighted K-Mean Clustering”. Asian Economic and Financial Review 10, no. 10 (October 19, 2020): 1169–1186. Accessed November 22, 2024. https://archive.aessweb.com/index.php/5002/article/view/2007.