• [Wiki] http://en.wikipedia.org/wiki/Pelomedusa_subrufa.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Pelomedusa_subrufa.
• [pelomedusa] http://www.pelomedusa.com/Breeding.html.
• [field_guide] http://online-field-guide.com/Pelomedusasubrufa.htm.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [Stry2001] Strydom, A. V. (2001). Seasonal reproduction and sexual size dimorphism of the African Helmeted Turtle, Pelomedusa subrufa (Family Pelomedusidae). PhD thesis, Univ. of Stellenbosch.