Skinwalkers Shapeshifters and Native American Curses by Gary and Wendy Swanson
https://www.google.com/amp/s/www.history.com/.amp/
news/skinwalker-ranch-paranormal-ufos-mutilation
The primary sources are a mixture of the Navajo myth or legend of the Skinwalkers as well as the other link being Skinwalker Ranch where there have been sightings of them, even aliens, over the years.
https://rivercityghosts.com/the-terror-of-the-skinwalker-the-native-american-boogeyman/
https://www.britannica.com/topic/Navajo-people
Britannica, T. Editors of Encyclopaedia (2020, May 6). Navajo. Encyclopedia Britannica. https://www.britannica.com/topic/Navajo-people
https://www.legendsofamerica.com/navajo-skinwalkers/
https://history.denverlibrary.org/news/skinwalkers-wendigos-and-witchery-way
These secondary sources consist of Navajo history, the skinwalkers and the magic they used and how the effects of it can cause good and evil consequences.
Skinwalkers Shapeshifters and Native American Curses by Gary and Wendy Swanson
This book is the same as the one on the primary sources pretty much just overlaying information of the skinwalkers.