Some professors from my alma mater — none of mine, I was a history major ;-) — published a book on Indian gaming.
The article is interesting. The book also touches on tribal disenrollment. I’ll see if I can grab a copy sometime and read it.
Here’s the link to The Collegian article: http://collegian.csufresno.edu/2011/09/28/fresno-state-political-science-professor-publishes-book-on-indian-gaming/