Christinawati, S. “THE IMPORTANCE OF ENGLISH PROFICIENCY TO FACE ASEAN ECONOMIC COMMUNITY (CASE STUDY: MEDICAL RECORDS AND HEALTH INFORMATION STUDENTS OF POLYTECHNIC PIKSI GANESHA BANDUNG)”. Jurnal Sastra - Studi Ilmiah Sastra, Vol. 9, no. 1, July 2019, pp. 12-18, http://45.118.112.109/ojspasim/index.php/sastra/article/view/118.