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AMERICAN SOCIETY FOR TESTING AND MATERIALS
AMERICAN SOCIETY FOR TESTING AND MATERIALS
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
The American Institute of Physics
Vch Publishers Inc Derfield Bach
The American Chemical Society
American Institute Of Chemical Engineers