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Fernando, Prithiviraj; Jayewardene, Jayantha; Prasad, Tharaka; Hendavitharana, W.; Pastorini, Jennifer (2011). "Current Status of Asian Elephants in Sri Lanka"(PDF). Gajah. 35: 93–103. Archived(PDF) from the original on 1 September 2022. Retrieved 3 September 2013.
Hendavitharana, W.; Dissanayake, S.; de Silva, M.; Santiapillai, C. (1994). "The Survey of elephants in Sri Lanka"(PDF). Gajah. 12 (1–30). Archived(PDF) from the original on 25 July 2011. Retrieved 3 March 2011.
de Silva, Shermin; Wittemyer, George (October 2012). "A Comparison of Social Organization in Asian Elephants and African Savannah Elephants". International Journal of Primatology. 33 (5): 1125–1141. doi:10.1007/s10764-011-9564-1. S2CID17209753.
de Silva, Shermin (2010). "Acoustic communication in the Asian elephant, Elephas maximus maximus". Behaviour. 147 (7): 825–852. doi:10.1163/000579510X495762.
de Silva, Shermin; Wittemyer, George (October 2012). "A Comparison of Social Organization in Asian Elephants and African Savannah Elephants". International Journal of Primatology. 33 (5): 1125–1141. doi:10.1007/s10764-011-9564-1. S2CID17209753.
Fernando, Prithiviraj; Jayewardene, Jayantha; Prasad, Tharaka; Hendavitharana, W.; Pastorini, Jennifer (2011). "Current Status of Asian Elephants in Sri Lanka"(PDF). Gajah. 35: 93–103. Archived(PDF) from the original on 1 September 2022. Retrieved 3 September 2013.
Hendavitharana, W.; Dissanayake, S.; de Silva, M.; Santiapillai, C. (1994). "The Survey of elephants in Sri Lanka"(PDF). Gajah. 12 (1–30). Archived(PDF) from the original on 25 July 2011. Retrieved 3 March 2011.