“USING TWO LANGUAGES IN TEACHING AND LEARNING MATERIALS TO FACE THE ASEAN ECONOMIC COMMUNITY (AEC) ISSUES”. Proceeding International Conference (SBC-MEA) 2016 1, no. 1 (Maret 30, 2016): 205–207. Diakses Oktober 17, 2026. https://jurnal.abulyatama.ac.id/index.php/mea2016/article/view/585.