| Gripper, J., 2013. Midlands black rhino conservancy. African indaba, e-newsletter 11 (2): 17-18
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| Gripper, J., 2012. Should we have legal trade in rhino horn?. Sebakwe News 2012 Spring: 1-2
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| Gripper, J., 2010. Dehorning (five black rhino in the Midlands Conservancy). Sebakwe News 2010 Autumn: 2-3
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| Gripper, J., 2008. The Midlands black rhino conservancy was formed in 1986. Sebakwe News 2008 Spring: 1
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| Gripper, J., 2007. Black rhino in the Midlands: emergency measures. The Horn Newsletter 2007 Autumn: 6, fig. 1
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