Kaminski, Michael A., Abdulaziz Al Shaibani, and Khalid Al Ramadan. “The White Volcanoes of Harrat Khaybar, North of Al-Madinah”. Geotourism/Geoturystyka, no. 37 (November 30, 2015): 3. Accessed November 21, 2024. https://journals.agh.edu.pl/geotour/article/view/1802.