N. . A. Khalifa, A. Zulkiple, A. Gheit Ali Alfughi, I. Ali Almukhtar attboli, and A. Salem Abolbaida Ghammeid, “Critical review of flexible pavement maintenance management systems”, IJET, vol. 8, no. 2, pp. 95–101, Jul. 2019, doi: 10.14419/ijet.v7i4.26957.