Sindi Sri Deviana Manalu, Jonny Siagian and Ganda T. Hutapea (2024) “The Influence Of Profitability Rasio On Stock Performance With Return Market Control Variabel In The Telecomunication Sub-Sector Listed On The Indonesia Stock Exchange Before, During and After Covid 19 ”, Fundamental Management Journal, 9(2), pp. 1 - 25. doi: 10.33541/fjm.v9i2.6288.