?url_ver=Z39.88-2004&rft_id=10.1051%2Fmatecconf%2F20141304008&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=W.T.&rft.au=Keong%2C+W.T.&rft.aulast=Keong&rft.date=2014&rft.issn=2261236X&rft.title=Evaluate+of+the+effects+of+drilling+with+varying+spindle+speed+using+different+thickness+of+GFRP+on+the+damage+factor&rft.genre=proceeding