Sari, Ratih Novita. “Learning Vocabulary through Paper and Online-Based Glossary”. Journal of ELT Research: The Academic Journal of Studies in English Language Teaching and Learning 1, no. 2 (September 7, 2016): 144–157. Accessed July 17, 2024. https://journal.uhamka.ac.id/index.php/jer/article/view/54.