HILAL, Tariq Osman Abdullah. – The effect of perceived value in achieving customer loyalty - The study of the case of Faisal Islamic Bank of Sudan \ Abu Saad branch . Journal of Economic, Administrative and Legal Sciences, New Mexico, United States, v. 3, n. 7, p. 83–58, 2019. DOI: 10.26389/AJSRP.T160219. Disponível em: https://ajsrp.ojsexpert.com/index.php/jeals/article/view/1546. Acesso em: 20 dec. 2025.