"WildBengal". Wildlife Wing, Directorate of Forests Government of West Bengal. 2017. Archived from the original on 5 March 2016. Retrieved 19 April 2018.
wildbengal.com
"WildBengal". Wildlife Wing, Directorate of Forests Government of West Bengal. 2017. Archived from the original on 5 March 2016. Retrieved 19 April 2018.