?url_ver=Z39.88-2004&rft_id=10.7186%2Fbgsm68201912&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Maisie%2C+M.A.&rft.aulast=Maisie&rft.aufirst=M.A.&rft.volume=68&rft.issn=01266187&rft.atitle=Evaluation+of+shales+of+the+belaga+formation+in+central+sarawak%2C+malaysia%2C+using+the+spectral+gamma+ray+method&rft.pages=127-131&rft.title=Bulletin+of+the+Geological+Society+of+Malaysia&rft.date=2019&rft.genre=article