Nwamekwe, Charles Onyeka, Chikwendu Charles Okpala, and Emeka Celestine Nwabunwanne. 2025. “Design Principles and Challenges in Achieving Zero-Energy Manufacturing Facilities”. Journal of Engineering Research and Applied Science 14 (1), 1-21. http://www.journaleras.com/index.php/jeras/article/view/373.