Susmitra Muhammad Efendi, and Nurdiana. “An Analysis of Readibility of English Textbook Used by The Second Grade Students of SMK Negeri 1 Kelayang”. TRANSFORM : Journal of English Language Teaching and Learning 13, no. 2 (June 28, 2024): 88–96. Accessed July 3, 2025. https://jurnal.unimed.ac.id/2012/index.php/jelt/article/view/66768.