Jevan Michael, Shella Koirun Nisa, Serina Muslimah, and Jazilatul Wafiroh. “PERFORMA SAHAM OPERATOR SELULER DI LQ45: ANALISIS EXPECTED RETURN DAN STANDAR DEVIASI PADA SAHAM TLKM, EXCL, DAN ISAT”. IJESM Indonesian Journal of Economics and Strategic Management 3, no. 1 (March 31, 2025). Accessed October 22, 2026. https://journal.drafpublisher.com/ijesm/article/view/398.