?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=S.&rft.au=Irawan%2C+S.&rft.aulast=Irawan&rft.issue=21&rft.volume=4&rft.issn=20407459&rft.atitle=Forecasting+CBM+production+of+mukah+balingian+Coalfield%2C+Sarawak%2C+Malaysia&rft.pages=4265-4274&rft.title=Research+Journal+of+Applied+Sciences%2C+Engineering+and+Technology&rft.date=2012&rft.genre=article