Candra, Clarrissa Winata, Calista. Building Employee Work Effectiveness Through Competence And Communication: A Study Of Cv Sejahtera Sukses Gemilang Medan. JCPA [Internet]. 2026 Jul. 19 [cited 2026 Sep. 13];4(02):738-4. Available from: https://edujavare.com/index.php/jcpa/article/view/1709