Ishaq Mubarak AL Hadhrami, Jayakumari. “A Proposed Study of a Unified E-Portal for Citizens and Residents in the Sultanate of Oman”. Journal of engineering sciences and information technology 2, no. 3 (September 30, 2018): 69–61. Accessed December 20, 2025. https://www.ajsrp.ojsexpert.com/index.php/jesit/article/view/1047.