Terdapat 31579 Judul
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American Geological Institute
The Society of Petroleum Engineers
M. Friedman, Elsevier Science Publisher
American Association of Petroleum Geologists
American Association Of Petroleum Geologists
Blackwell Energy Research
Blackwell Energy Research
Direktorat Paten, Dirjen Hak Kekayaan Intelektual, Departemen Hukum dan Hak Asasi Manusia