Pratama, Aditya, Neva Satyahadewi, and Evy Sulistianingsih. 2024. “ANALYSIS OF OPTIMAL PORTFOLIO FORMATION ON IDX30 INDEXED STOCK WITH THE MEAN ABSOLUTE DEVIATION METHOD”. BAREKENG: Jurnal Ilmu Matematika Dan Terapan 18 (3), 1753-64. https://doi.org/10.30598/barekengvol18iss3pp1753-1764.