Siahaan, G. G. Y. and Siagian, J. (2018) “THE ANALYSIS OF OPTIMAL PORTFOLIO 3 COMPANIES’ STOCK AND THE INNOVATION OF STOCK PORTFOLIO, PERIOD OF 2014-2016”, Fundamental Management Journal, 3(1), pp. 25 - 31. Available at: http://ejournal.uki.ac.id/index.php/jm/article/view/718 (Accessed: 6May2024).