Andriani D, Sriwahyuningsih V. An Analysis of Students’ Mastery of Vocabulary : at English Department of Universitas Putra Indonesia YPTK Padang at 2018/2019 Academic Year. ELT-Lectura [Internet]. 2019Sep.2 [cited 2024May5];6(2):169-76. Available from: https://journal.unilak.ac.id/index.php/ELT-Lectura/article/view/3195