• [Wiki] http://en.wikipedia.org/wiki/Procavia_capensis.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Procavia_capensis.
• [awf] http://www.awf.org/content/wildlife/detail/hyrax.
• [Four1983] Fourie, L. J. (1983). Population dynamics of the rock hyrax Procavia capensis (Pallas, 1766) in the mountain zebra national park. PhD thesis, Rhodes Univ.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [RubsKett1980] Rübsamen, K. and Kettembeil, S. (1980). Effect of water restriction on oxygen uptake, evaporative water loss and body temperature of the rock hyrax. Journal of Comparative Physiology B, 138:315--320.