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American petroleum institute
American petroleum institute
American petroleum institute
Direktorat Paten, Dirjen Hak Kekayaan Intelektual, Departemen Hukum dan Hak Asasi Manusia
American Chemical Society
The American Chemical Society
Energy Economics Research
American Association of Petroleum Geologists
American Institute Of Chemical Engineers
The Society of Tribologists and Lubrication
Blackwell Scientific Publications
The Society of Petroleum Engineers