Shofiyuddin, M., & Andriyani, S. (2019). Model Pembelajaran Tenses Menggunakan Rumus Mathematic English (MatEng). Al-Lisan: Jurnal Bahasa (e-Journal), 4(2), 212–222. Retrieved from https://www.journal.iaingorontalo.ac.id/index.php/al/article/view/851