Maria, Astrit. “Implementing English Morphological Awareness of Derivation in the Teaching of Vocabulary for Adult Learners”. Journal of ELT Research: The Academic Journal of Studies in English Language Teaching and Learning 4, no. 2 (August 28, 2019): 178–188. Accessed November 5, 2024. https://journal.uhamka.ac.id/index.php/jer/article/view/3014.