Hartono W, Ongkowijoyo G. Financial Performance Evaluation of PT. Telekomunikasi Indonesia, Tbk. and PT. Indosat, Tbk. JAEF [Internet]. 2019 Oct. 1 [cited 2026 Feb. 21];1(1):77-96. Available from: https://journal.uc.ac.id/index.php/JAEF/article/view/1000