Nawarat Samphansri และ Teerin Vanichseni. (2016) A STUDY ON THE ORGANIZATIONAL ENGAGEMENT OF DIRECT SALESPEOPLE: A CASE STUDY ON THAI DIRECT SALES INDUSTRY. <i>UTCC International Journal of Business and Economics</i>, <i>8</i>(2), 31-44.Nawarat Samphansri และ Teerin Vanichseni. "A STUDY ON THE ORGANIZATIONAL ENGAGEMENT OF DIRECT SALESPEOPLE: A CASE STUDY ON THAI DIRECT SALES INDUSTRY". UTCC International Journal of Business and Economics 8 (2016):31-44.Nawarat Samphansri และ Teerin Vanichseni. A STUDY ON THE ORGANIZATIONAL ENGAGEMENT OF DIRECT SALESPEOPLE: A CASE STUDY ON THAI DIRECT SALES INDUSTRY. University of the Thai Chamber of Commerce:ม.ป.ท. 2016.