Udu, Chukwudi Emeka, Patrick Sunday Aguh, and Charles Chikwendu Okpala. “Hybrid Manufacturing: The Integration of Subtractive and Additive Processes”. Journal of Engineering Research and Applied Science 15, no. 1 (June 30, 2026): 1-13. Accessed October 6, 2026. http://www.journaleras.com/index.php/jeras/article/view/399.