Tawfik, A., Omran, S. (2019). Obstacles of Geotourism in Egypt as applied to Wadi El Gemal National Park. test, 17(3), 106-122. doi: 10.21608/jaauth.2020.36385.1049
Ahmed Tawfik; Soad Omran. "Obstacles of Geotourism in Egypt as applied to Wadi El Gemal National Park". test, 17, 3, 2019, 106-122. doi: 10.21608/jaauth.2020.36385.1049
Tawfik, A., Omran, S. (2019). 'Obstacles of Geotourism in Egypt as applied to Wadi El Gemal National Park', test, 17(3), pp. 106-122. doi: 10.21608/jaauth.2020.36385.1049
Tawfik, A., Omran, S. Obstacles of Geotourism in Egypt as applied to Wadi El Gemal National Park. test, 2019; 17(3): 106-122. doi: 10.21608/jaauth.2020.36385.1049