M. A. Kaminski, T. F. Garrison, and C. E. Yoder, “The Paleozoic formations of the Al Qassim Province in Saudi Arabia as potential sites for geotourism”, geotour, no. 3–4 (58–59), p. 1, Feb. 2021, doi: 10.7494/geotour.2019.58-59.1.