Yosmar, S. , Damayanti, S. and Febrika, S. 2026. LQ45 Stock Portfolio Selection using Black-Litterman Model in Pandemic Time Covid-19. Indonesian Journal of Statistics and Its Applications. 5, 2 (May 2026), 343–354. DOI:https://doi.org/10.29244/ijsa.v5i2p343-354.