A large number of reports on Captive Elephants have been uploaded onto the site under the Resources section. Click on the links below for reference.
Technical Reports
http://www.asiannature.org/resources/reports/29 [1]
Occasional Reports
http://www.asiannature.org/resources/reports/30 [2]
Links:
[1] http://www.asiannature.org/resources/reports/29
[2] http://www.asiannature.org/resources/reports/30