Fickel, J.; Lieckfeldt, D.; Ratanakorn, P.; Pitra, C. (2007). "Distribution of haplotypes and microsatellite alleles among Asian elephants (Elephas maximus) in Thailand". European Journal of Wildlife Research. 53 (4): 298–303. Bibcode:2007EJWR...53..298F. doi:10.1007/s10344-007-0099-x. S2CID25507884.
Fickel, J.; Lieckfeldt, D.; Ratanakorn, P.; Pitra, C. (2007). "Distribution of haplotypes and microsatellite alleles among Asian elephants (Elephas maximus) in Thailand". European Journal of Wildlife Research. 53 (4): 298–303. Bibcode:2007EJWR...53..298F. doi:10.1007/s10344-007-0099-x. S2CID25507884.
Fickel, J.; Lieckfeldt, D.; Ratanakorn, P.; Pitra, C. (2007). "Distribution of haplotypes and microsatellite alleles among Asian elephants (Elephas maximus) in Thailand". European Journal of Wildlife Research. 53 (4): 298–303. Bibcode:2007EJWR...53..298F. doi:10.1007/s10344-007-0099-x. S2CID25507884.