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American petroleum institute
American petroleum institute
Direktorat Paten, Dirjen Hak Kekayaan Intelektual, Departemen Hukum dan Hak Asasi Manusia
The American Chemical Society
The American Chemical Society
American Institute Of Chemical Engineers
American Institute Of Chemical Engineers
Geological Society of India
Paleontological Research Institution
The American Society of Mechanical Engineers
Society of Economic Paleontologists and Mineralogists
The Society of Petroleum Engineers