• [Wiki] http://en.wikipedia.org/wiki/Podocnemis_expansa.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Podocnemis_expansa.
• [EoL] urlhttps://eol.org/pages/6868408.
• [ChinVale2008] Chinsamya, A. and Valenzuela, N. (2008). Skeletochronology of the endangered side-neck turtle, Podocnemis expansa. South African Journal of Science, 104:311--314.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [MagaVogt2017] Magalhães, M. S., Vogt, R. C., Sebben, A., Dias, L. C., de Oliveira, M. F., and de Moura, C. E. B. (2017). Embryonic development of the giant South American river turtle, Podocnemis expansa (Testudines: Podocnemididae). Zoomorphology, 136:523--537. doi:10.1007/s00435-017-0365-8.