Furaidah, Furaidah, and Suharmanto Suharmanto. 2015. “PATTERNS OF SAC UTILIZATION AND THE SINE QUA NON OF THE SELF-PROPELLED DEVELOPMENT OF STUDENTS’ ENGLISH PROFICIENCY”. TEFLIN Journal 19 (1):27-41. https://doi.org/10.15639/teflinjournal.v19i1/27-41.