“ANALYSIS OF OPTIMAL PORTFOLIO FORMATION USING SINGLE INDEX MODEL ON STOCKS INCLUDED IN THE LQ 45 MARKET INDEX ON THE INDONESIA STOCK EXCHANGE”. AJAR 5, no. 02 (August 31, 2022): 207–225. Accessed November 2, 2026. https://www.ojs.feb.uajmks.ac.id/index.php/AJAR/article/view/345.