Giharta, Ade Sukma, & Ida Bagus Panji Sedana.
" Establishment of Optimal Portfolio at Shares of Sub-Sector Building Companies In Indonesia Stock Exchange (Markowitz Approach)." <em>E-Jurnal Manajemen</em> [Online], 6.9 (2017): 4716 - 4743. Web. 14 Oct. 2025