Khumaedi, Muhammad, Dwi Widjanarko, Rizki Setiadi, and Andri Setiyawan. “Evaluating the Impact of Audio-Visual Media on Learning Outcomes of Drawing Orthographic Projections”. International Journal of Education and Practice 9, no. 3 (September 13, 2021): 613–624. Accessed April 27, 2024. http://archive.conscientiabeam.com/index.php/61/article/view/729.