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AMERICAN SOCIETY FOR TESTING AND MATERIALS
AMERICAN SOCIETY FOR TESTING AND MATERIALS 1982
AMERICAN SOCIETY FOR TESTING AND MATERIALS
The Geological society Of america Bulletin
American petroleum institute
American petroleum institute
Direktorat Paten, Dirjen Hak Kekayaan Intelektual, Departemen Hukum dan Hak Asasi Manusia
The American Chemical Society
American Association of Petroleum Geologists
The American Institute of Physics