Junus, Mochammad, Naufal Abdir Rozaq, and Rachmad Saptono. “Implementation of An Application-Based Motor Vehicle Exhaust Emission Level Detection System”. West Science Interdisciplinary Studies 2, no. 09 (September 30, 2024): 1799–1811. Accessed December 21, 2024. https://wsj.westscience-press.com/index.php/wsis/article/view/1291.