M. I. Al-Zahawi, A. T. Bilal, and S. E. Al-Daloy, “Activating and managing camping tourism and its role in increasing tourist’s expenditure: A survey of the views of a sample of tourists and tourism experts in the province of Sulaymaniyah, Kurdistan Region of Iraq”, J Univ Hum Dev, vol. 5, no. 1, pp. 44–60, Jan. 2019.