Eguzo, C. V., E. I. Igweonu, and B. J. Robert. “Developing a Functional Light-Emitting Diode (LED) Indicator in a Heat Controlled Environment”. Journal of Chemical, Mechanical and Engineering Practices (JCMEP) 2, no. 3 (December 1, 2012): 24–27. Accessed September 19, 2024. http://icidr.org.ng/index.php/Jcmep/article/view/1096.