http://www.muhendisim.org/ynt_yukleme_upload_onceligi_hakkinda_gorus-t2361.0.html;msg11886#new

www.atayurduakcakese.com/forum/showthread.php

http://www.muhendisiz.net/viewforum.php?f=95

www.engineershandbook.com/MfgMethods/ecdg.htm

composite.about.com/library/glossary/e/bldef-e1915.htm

www.sciencedirect.com