Eleonora Odorizzi และ Donn Pjongluck. (2015) A qualitative study on the interrelationship among purchasing strategy, corporate purchasers' behavior and purchase performance:a case study on the purchase division of ems company in thailand. Stamford International University:ม.ป.ท.Eleonora Odorizzi และ Donn Pjongluck. 2015. A qualitative study on the interrelationship among purchasing strategy, corporate purchasers' behavior and purchase performance:a case study on the purchase division of ems company in thailand. ม.ป.ท.:Stamford International University;Eleonora Odorizzi และ Donn Pjongluck. A qualitative study on the interrelationship among purchasing strategy, corporate purchasers' behavior and purchase performance:a case study on the purchase division of ems company in thailand. ม.ป.ท.:Stamford International University, 2015. Print.