Try "Coctail Boyz" by Nicky Stewart. It is a three volume story about a fictitious bar in Sunee Plazza and its owner, staff, boys customers and environment from the opening of the bar and the reqcruitment in Issan to the death of the owner and its closure after a few years. It is available paper back from Amazon.de @ Euro 14.97 each. Also available in e book format.
The "Bangkok Boy Bar" by Richard Vohl is also available from Amazon.