Pangaribuan J. ANALISIS EFISIENSI PENENTUAN PORTOFOLIO SAHAM PERUSAHAAN MANUFAKTUR DI PT. BURSA EFEK INDONESIA (BEI). JMB [Internet]. 2017Dec.13 [cited 2024Jul.22];12(2):38-56. Available from: https://ejournal.ust.ac.id/index.php/JIMB_ekonomi/article/view/58