• [Wiki] http://en.wikipedia.org/wiki/Gopherus_berlandieri.
• [AnAge] https://genomics.senescence.info/species/entry.php?species=Gopherus_berlandieri.
• [ReptileDB] https://reptile-database.reptarium.cz/species?genus=Gopherus&species=berlandieri.
• [theturtleroom] https://theturtleroom.org/species-profiles/gopherus-berlandieri/.
• [JuddMcQu1980] Judd, F. W. and McQueen, J. C. (1980). Incubation, hatching, and growth of the tortoise, Gopherus berlandieri. Journal of Herpetology, 14(4):377--380. doi:10.11609/zp.v12i1.4970.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.