Andy Wijaya, Sisca, Hengki Mangiring Parulian Simarmata. PENGEMBANGAN TEKNIK MENGAJAR GURU DI LEMBAGA EKKLESIA PRIVATE ENGLISH COURSE . J-ABDI [Internet]. 2021 Aug. 23 [cited 2025 Aug. 21];1(1):85-90. Available from: https://www.bajangjournal.com/index.php/J-ABDI/article/view/182