Shahruzzaman, M, D Saha, MS Rahman, and MS Rahman. “Application of Plackett-Burman Design to Benzylation of O-Cresol With Benzyl Alcohol”. Bangladesh Journal of Scientific and Industrial Research 50, no. 3 (November 5, 2015): 169-180. Accessed March 30, 2020. https://www.banglajol.info/index.php/BJSIR/article/view/25580.