Thuy & 6 Others, Tran Thi Thanh. 2018. “CUSTOMER RELATIONSHIP MANAGEMENT – A CASE STUDY IN URBAN WATER UTILITIES IN VIETNAM”. AU EJournal of Interdisciplinary Research (ISSN: 2408-1906) 3 (2). http://www.assumptionjournal.au.edu/index.php/eJIR/article/view/4179.