Septy, Adzanil, and Riska Juliani. “An Analysis of Students’ Errors In Transforming Active Into Passive Sentences at Bung Hatta University English Department”. Journal on Education 5, no. 3 (February 16, 2023): 9702-9713. Accessed May 3, 2024. https://jonedu.org/index.php/joe/article/view/1852.