need some help finding mediaWiki book.

desperately looking for two books on mediaWiki administration. If anyone has any good sites/recommendations for tech ebooks I would appreciate your help. Usually have good luck at ebookshare.net with O'Reilly books, but these books have sadly beaten me:angry: thx in advance

1. Mediawiki (Wikipedia and Beyond) by Daniel J. Barrett (isbn: 0596519796)

2. MediaWiki Administrators' Tutorial Guide: Install, manage, and customize your MediaWiki installation by Mizanur Rahman