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American petroleum institute
Direktorat Paten, Dirjen Hak Kekayaan Intelektual, Departemen Hukum dan Hak Asasi Manusia
The American Chemical Society
Vch Publishers Inc Derfield Bach
American Institute Of Chemical Engineers
Blackwell Scientific Publication
The American Society of Lubrication Engineering
Blackwell Scientific Publications
The Society Petroleum Engineers
M. Friedman, Elsevier Science Publisher
American Musium Of Natural History
Blackwell Energy Research