Suprangtip Poonun และ Sotarat Thammaboosadee. (2015) Function-oriented business process improvemnt framework for customer relationship management section in large scale organization. Mahidol University:ม.ป.ท.Suprangtip Poonun และ Sotarat Thammaboosadee. 2015. Function-oriented business process improvemnt framework for customer relationship management section in large scale organization. ม.ป.ท.:Mahidol University;Suprangtip Poonun และ Sotarat Thammaboosadee. Function-oriented business process improvemnt framework for customer relationship management section in large scale organization. ม.ป.ท.:Mahidol University, 2015. Print.