H. Saegusa, H. Nakaya, Y. Kunimatsu, M. Nakatsukasa, H. Tsujikawa, Y. Sawada, M. Saneyoshi, T. Sakai Earliest elephantid remains from the late Miocene locality, Nakali, Kenya Scientific Annals, School of Geology, Aristotle University of Thessaloniki, Greece VIth International Conference on Mammoths and Their Relatives, vol. 102, Grevena -Siatista, special volume (2014), p. 175
Somgrid, C.„Elephant Anatomy and Biology: Skeletal system“. Elephant Research and Education Center, Department of Companion Animal and Wildlife Clinics, Faculty of Veterinary Medicine, Chiang Mai University. 2012-yil 13-iyunda asl nusxadan arxivlangan. Qaraldi: 2012-yil 21-sentyabr.
Ozawa, T.; Hayashi, S.; Mikhelson, V. M. (1997). "Phylogenetic position of mammoth and Steller's sea cow within tethytheria demonstrated by mitochondrial DNA sequences". Journal of Molecular Evolution44 (4): 406–13. doi:10.1007/PL00006160. PMID9089080.
Iannucci, Alessio; Sardella, Raffaele (2023-02-28). "What Does the "Elephant-Equus" Event Mean Today? Reflections on Mammal Dispersal Events around the Pliocene-Pleistocene Boundary and the Flexible Ambiguity of Biochronology" (en). Quaternary6 (1): 16. doi:10.3390/quat6010016. ISSN2571-550X.
Ozawa, T.; Hayashi, S.; Mikhelson, V. M. (1997). "Phylogenetic position of mammoth and Steller's sea cow within tethytheria demonstrated by mitochondrial DNA sequences". Journal of Molecular Evolution44 (4): 406–13. doi:10.1007/PL00006160. PMID9089080.
Somgrid, C.„Elephant Anatomy and Biology: Skeletal system“. Elephant Research and Education Center, Department of Companion Animal and Wildlife Clinics, Faculty of Veterinary Medicine, Chiang Mai University. 2012-yil 13-iyunda asl nusxadan arxivlangan. Qaraldi: 2012-yil 21-sentyabr.
Iannucci, Alessio; Sardella, Raffaele (2023-02-28). "What Does the "Elephant-Equus" Event Mean Today? Reflections on Mammal Dispersal Events around the Pliocene-Pleistocene Boundary and the Flexible Ambiguity of Biochronology" (en). Quaternary6 (1): 16. doi:10.3390/quat6010016. ISSN2571-550X.