• [Wiki] https://en.wikipedia.org/wiki/Heterobranchus_longifilis.
• [fishbase] https://www.fishbase.de/summary/Heterobranchus-longifilis.html.
• [worldrecords] http://www.fishing-worldrecords.com/scientificname/Heterobranchus longifilis/show.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [LegeTeug1992] Legendre, M., Teugels, G. G., Cauty, C., and Jalabert, B. (1992). A comparative study on morphology, growth rate and reproduction of Clarias gariepinus (Burchell, 1822), Heterobranchus longifilis Valenciennes, 1840, and their reciprocal hybrids (Pisces, Clariidae). Journal of Fish Biology, 40:59--79.