| Khan, M.; Nor, B.; Yusof, E.; Rahman, M.A., 1993. In-situ conservation of the Sumatran rhinoceros (Dicerorhinus sumatrensis): a Malaysian experience: pp. 238-247, map 1, tables 1-2
| In: Ryder, O.A. Rhinoceros biology and conservation: Proceedings of an international conference, San Diego, U.S.A. San Diego, Zoological Society: pp. i-v, 1-368 |
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| Khan, M.; Foose, T.J., 1993. Report of the IUCN/SSC Asian Rhino Specialist Group to the UNEP Conference among rhinoceros range states, consumer states, and donors, Nairobi, 28 June 1993: pp. 1-16
| In: Tilson, R. et al. Sumatran rhino population and habitat viability analysis workshop: briefing book. Apple Valley, CBSG: [not paginated] |
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| Khan, M.; Foose, T.J., 1993. Report of the IUCN/SSC Asian Rhino Specialist Group to the UNEP Conference among rhinoceros range states, consumer states, and donors, Nairobi, 28 June 1993: pp. 1-16
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