Aulawi, Hilmi, M Ali Ramdhani, and Dedi Sulaeman. “University Writing Guidebook for Natural, Social Sciences and Humanities”. International Journal of Engineering & Technology 7, no. 3.21 (August 8, 2018): 464–466. Accessed November 22, 2024. https://sciencepubco.com/index.php/ijet/article/view/17213.