Mansor, Maria, F. Salehuddin, I. Ahmad, Zulkifli Mansor, K.E. Kaharudin, Nasaruddin Mohammad, N.Amizan Abd Rahman, A.S Mohd Zain, N. Idris, and N.Z Haron. 2013. “Application of Taguchi Method in Optimization of Shallow PN Junction Formation”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC) 5 (2):33-38. https://jtec.utem.edu.my/jtec/article/view/446.