Rahmadi, M.D. et al. 2024. Business Index 27 Stock Portfolio Optimization Using the Black Litterman Model Accompanied by Value At Risk Calculation: Bahasa Indonesia. Jurnal Matematika, Statistika dan Komputasi. 21, 1 (Sep. 2024), 136–146. DOI:https://doi.org/10.20956/j.v21i1.36306.