GHASHAM, Yahya Ali Mohammed. Impact of Service Quality on Customer Preservation "A Field Research of the opinions of a sample of Yemen Mobile Customers in Dhamar City ". Journal of the Faculty of Education, [S. l.], v. 13, n. (1), p. 107–129, 2024. DOI: 10.60037/edu.v13i(1).1927. Disponível em: https://journal.tu.edu.ye/index.php/edu/article/view/1927. Acesso em: 30 jun. 2024.