Rahmadi MD, Yahya L, Nuha AR. Business Index 27 Stock Portfolio Optimization Using the Black Litterman Model Accompanied by Value At Risk Calculation: Bahasa Indonesia. JMSK [Internet]. 2024Sep.15 [cited 2025Jul.9];21(1):136-4. Available from: http://54.254.27.92/index.php/jmsk/article/view/36306