Ekadjaja, Margarita, and Rorlen. “DETERMINAN INDEKS HARGA SAHAM SEKTOR PERTAMBANGAN ”. Jurnal Humanipreneur 2, no. 1 (March 31, 2023): 16-24. Accessed August 15, 2025. https://www.openjournal.ikdki.org/index.php/humanipreneur/article/view/29.