?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=K.&rft.aulast=Altaf&rft.au=Altaf%2C+K.&rft.issn=18196608&rft.atitle=Application+of+additive+manufacturing%2F3D+printing+technologies+and+investment+casting+for+prototype+development+of+polycrystalline+diamond+compact+(PDC)+drill+bit+body&rft.title=ARPN+Journal+of+Engineering+and+Applied+Sciences&rft.issue=10&rft.date=2016&rft.pages=6514-6518&rft.volume=11&rft.genre=article