Hendrik Leonard Simanjuntak, Sella Noviyanti Saragih, Karunia Debora Claudia, Domilika Panggabean, Kartini R. M. Manalu. GKI GCC; Magang; Aspek Musikal; Aspek Non musikal . J-I-P-M-A-S [Internet]. 2025Feb.13 [cited 2025Feb.23];6(1):159-68. Available from: https://ejournal.uhn.ac.id/index.php/pengabdian/article/view/2667