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WITTEMYER, George; SILVA, Shermin de. A Comparison of Social Organization in Asian Elephants and African Savannah Elephants. International Journal of Primatology. 2012-10-01, roč. 33, čís. 5, s. 1125–1141. Dostupné online [cit. 2019-01-10]. ISSN1573-8604. DOI10.1007/s10764-011-9564-1. (anglicky)
SILVA, Shermin de. Acoustic communication in the Asian elephant, Elephas maximus maximus. Behaviour. 2010-01-01, roč. 147, čís. 7, s. 825–852. Dostupné online [cit. 2019-01-10]. ISSN1568-539X. DOI10.1163/000579510X495762. (anglicky)
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