Herdi, Herdi, and Siti Restian Ningsih. “Improving Students’ Vocabulary Mastery by Using ESA (Engage, Study, Activate) Method for the Students’ of Eighth Grade at MTs Negeri 02 Pekanbaru”. ELT-Lectura 5, no. 2 (August 20, 2018). Accessed March 2, 2024. https://journal.unilak.ac.id/index.php/ELT-Lectura/article/view/1676.