?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=S.M.&rft.aulast=Ibad&rft.au=Ibad%2C+S.M.&rft.issue=2&rft.date=2018&rft.pages=321-329&rft.volume=60&rft.issn=13377027&rft.atitle=SPECTROSCOPIC+AND+PETROGRAPHIC+CHARACTERIZATION+OF+SHALE+FROM+KUBANG+PASU+FORMATION%2C+MALAYSIA&rft.title=Petroleum+and+Coal&rft.genre=article