找到四本免費電子書。

Primary Direction Part 1
http://www.dearbrutus.com/primarydirections_1.pdf 9.54Mb
Primary Direction Part 2
http://www.dearbrutus.com/primarydirections_2.pdf 11.02Mb
Primary Direction Part 3
http://www.dearbrutus.com/primarydirections_3.pdf 14.95Mb
Primary Direcion Made Easy
http://www.panplanet.com/library/downloads/Sepharial.pdf 764kb

請各位看後發表些意見。