English Learning Activities in Heavy Equipment Engineering Study Program at Olat Maras Community Academy. Khidmatuna. J. Res. Community. Serv. [Internet]. 2023 Jan. 11 [cited 2026 Feb. 2];1(2):1-9. Available from: https://jurnal.institutsunandoe.ac.id/index.php/khidmatuna/article/view/91