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American petroleum institute
American petroleum institute
American Association of Petroleum Geologists
Direktorat Paten, Dirjen Hak Kekayaan Intelektual, Departemen Hukum dan Hak Asasi Manusia
The American Chemical Society
Division of Chemical Education
The American Institute of Physics
Vch Publishers Inc Derfield Bach
The American Chemical Society
Mc.Graw Hill Publishing Company
Society of Economic Paleontologists and Mineralogists
The Society of Petroleum Engineers
The Clay Minerals Society