• [Wiki] http://en.wikipedia.org/wiki/Proechimys_semispinosus.
• [ADW] https://animaldiversity.org/accounts/Proechimys_semispinosus/.
• [AnAge] https://genomics.senescence.info/species/entry.php?species=Proechimys_semispinosus.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [MaliEise1971] Maliniak, E. and Eisenberg, J. F. (1971). Breeding spiny rats in captivity. International Zoo Yearbook, 11(1):93–98. doi:10.1111/j.1748-1090.197.
• [Tesh1970] Tesh, R. B. (1970). Notes on the reproduction, growth, and development of Echimyid rodents in Panama. Journal of Mammalogy, 51(1):199--202.