Nakas, James P., author
McGrow-Hill, 1990
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Artikel Jurnal
Issara Poljungreed, author
Thammasat University, 2017
Artikel Jurnal
Harijono Achmad, author
The Indonesian Journal of Gastroenterology Hepatology and Digestive Endoscopy, 2001
Artikel Jurnal
edited by R.C.W. Berkeley ... [and others]
Socienty of chemical industry, 1980
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