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SUPERINTENDING COMPANY OF INDONESIA,
Department of Refining and Chemistry Indonesian petroleum Institute
Process Laboratories Oil and Gas Technology Research Development “Centreâ€
WAPOGA MUTIARA TIMBER, PT
SOCIETRY, Of econimic paleontologists mineralogists
CHEREMISINOFF, Nicholas P
AMERICAN SOCIETY FOR TESTING AND MATERIALS
AMERICAN, Institute Of Chemcal Engineers
American petroleum institute