by Walker, S. F
https://ia802604.us.archive.org/9/items/ruinsrevisitedwo00walkrich/ruinsrevisitedwo00walkrich.pdf
Went and watched the most recent video and was lead to find this book mentioned in a book he showed on the video.
Big Judah's video: https://www.youtube.com/watch?v=Rkg84tFEpRU