Md. Golam Kibria Assistant Professor Department of Industrial Engineering and Management Khulna University of Engineering & Technology (KUET) Khulna -9203, Bangladesh. Phone: +88-041-769468 ~71,Ext: 465 (Off.) Mail : kibriaATiem.kuet.ac.bd, kibria05_ruetATyahoo.com Website : www.kuet.ac.bd/iem/kibria/