Promduang, Jenjira. “A Proactive Approach to Customer Service in the Airline Industry: The Relationship Between Emotional Intelligence, Customer Orientation, and Self-Rating Performance.”. AU-GSB e-JOURNAL 6, no. 2 (November 6, 2014). Accessed April 29, 2024. http://www.assumptionjournal.au.edu/index.php/AU-GSB/article/view/452.