Agus Wibowo. “ENGLISH FOR COMMUNICATION 1, Purpose of the Study”. Penerbit Yayasan Prima Agus Teknik 6, no. 1 (December 12, 2020): 1–172. Accessed November 21, 2024. https://penerbit.stekom.ac.id/index.php/yayasanpat/article/view/337.