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JOURNAL OF CHROMATOGRAPHY A
JOURNAL OF CHROMATOGRAPHY A
JOURNAL OF CHROMATOGRAPHY A JOURNAL OF CHROMATOGRAPHY A
Daulat Muara Toba Siregar
Direktorat Paten, Dirjen Hak Kekayaan Intelektual, Departemen Hukum dan Hak Asasi Manusia
The American Chemical Society
The American Chemical Society
American Association of Petroleum Geologists
The American Institute of Physics
American Institute Of Chemical Engineers
Geological Society of India
Paleontological Research Institution
Peterson Publishing CO LTD
The Society of Petroleum Engineers
The Clay Minerals Society