Aisyah , S. and Tanasy, N. 2019. Improving the Vocabulary Mastery in ELT Context: Mapping Words Technique for Vocational Students. Utamax : Journal of Ultimate Research and Trends in Education. 1, 3 (Nov. 2019), 98-104. DOI:https://doi.org/10.31849/utamax.v1i3.6307.