., M., & Azwad Fauzan, A. (2019). Optimization of English Speaking Skill and English Grammatical Competence of Second Semester College Students in English Literature of Bung Hatta University Through Role-play Technique: Classroom Action Research of English As Foreign Language. KnE Social Sciences, 3(14), 402–417. https://doi.org/10.18502/kss.v3i14.4326