Saifi, Muhammad, Intan Lifinda Ayuning Putri, and Langgeng Setyono. “Determinants of Firm Performance Based on Investment Opportunities and Capital Structure”. Research Horizon 5, no. 3 (June 30, 2025): 479–492. Accessed May 21, 2026. https://journal.lifescifi.com/index.php/RH/article/view/606.