Ismail, M.I.A.-B. and Pirdaus, D.I. 2025. Health Sector Portfolio Optimization Using the Markowitz Approach with Risk Aversion and Risk Tolerance Parameters. Operations Research: International Conference Series. 5, 4 (Jan. 2025), 155–160. DOI:https://doi.org/10.47194/orics.v5i4.352.