Fadhilah, Fauziyah, Vivi Natasha, Fariza Putri Hawa, Hasna Khalisha Putri, Mahesa, and Maria Yovita R Pandin. “The Effect of Portfolio Diversification, Systematic Risk, and Stock Liquidity on Individual Investor’s Portfolio Performance”. Best Journal of Administration and Management 4, no. 2 (December 16, 2025): 79–87. Accessed April 30, 2026. https://internationalpublisher.id/journal/index.php/Bejam/article/view/381.