John, Arthur W., author
The Practical guide to: book repair and conservation
Thames and Hudson, 1988
 Buku Teks
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
Cunha, George Daniel Martin, author
Conservation of library materials: a manual and bibliography on the care, repair and restoration of library materials
Scarecrow Press, 1967
 Buku Teks
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