Indonesian Journal of Conservation
Badan Pengembangan Konservasi UNS,
 Majalah, Jurnal, Buletin
Mangroves for national development and conservation in Indonesia : challenges for the future
 Artikel Jurnal
Panjaitan, Pohan, author
Determination the location and size of each zona of regional water conservation area in central tapanuli distric / Pohan Panjaitan
Universitas HKBP Nonmensen, 2016
 Artikel Jurnal
Spellerberg, Ian F., author
Biological conservation
Cambridge University Press, 1992
 Buku Teks
An introduction to primate conservation
edited by Serge A. Wich, Andrew J. Marshall
Oxford University Press, 2016
 eBooks
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