Pratama, Aditya, Neva Satyahadewi, and Evy Sulistianingsih. “ANALYSIS OF OPTIMAL PORTFOLIO FORMATION ON IDX30 INDEXED STOCK WITH THE MEAN ABSOLUTE DEVIATION METHOD”. BAREKENG: Jurnal Ilmu Matematika dan Terapan 18, no. 3 (July 31, 2024): 1753-1764. Accessed August 6, 2024. https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/12330.