?url_ver=Z39.88-2004&rft_id=10.14419%2Fijet.v7i4.35.22341&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Mang&rft.au=Mang%2C+W.J.&rft.aufirst=W.J.&rft.issue=4&rft.volume=7&rft.issn=2227524X&rft.atitle=Issues+in+engineering+geological+classification+of+weathered+sedimentary+rocks%3A+Case+study+of+Kati+Formation%2C+Parit%2C+Perak&rft.pages=131-135&rft.title=International+Journal+of+Engineering+and+Technology(UAE)&rft.date=2018&rft.genre=article