Abbott, Patrick L., author
Natural disasters
McGraw-Hill, 2009
 Buku Teks
Balch, James F, author
Prescription for Drug Alternatives: All-Natural Options for Better Health without the Side Effects
John Wiley & Sons, Inc., 2008
 Buku Teks
Lu, Henry C., author
Chinese Natural Cures: Traditional Methods for Remedies and Prevention
Black Dog & Leventhal Publishing, Inc, 1999
 Buku Teks
Mining : Natural Resources Development
 Artikel Jurnal
The chemistry of natural products
edited by R.H. Thomson
Blackie, 1985
 Buku Teks
<<   5 6 7   >>