“USING TWO LANGUAGES IN TEACHING AND LEARNING MATERIALS TO FACE THE ASEAN ECONOMIC COMMUNITY (AEC) ISSUES”. Proceeding International Conference (SBC-MEA) 2016, vol. 1, no. 1, Maret 2016, hlm. 205-7, https://jurnal.abulyatama.ac.id/index.php/mea2016/article/view/585.