Removal of arsenic (V) from aqueous solutions using chemically modified sawdust of spruce (Picea abies) : Kinities and isotherm studies
 Artikel Jurnal
Plant resources of South-East Asia no.15 (2), cryptoogams : ferns and fern allies / Editor: W.P. de Winter
Prosea Foundation, 2003
 Buku Teks
Plant resources of South-East Asia no.18, plants producing exudates
E. Boer, editor
Backhuys Publishers, 2000
 Buku Teks
Plant resources of South-East Asia no.17, Fibre plants
editors, M. Brink, R.P. Escobin
Backhuys , 2003
 Buku Teks
D. Dwidjoseputro, author
Pengantar fisiologi tumbuhan
Gramedia, 1994
 Buku Teks
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