Venomous snakes of Nepal: a photographic guide - sharma, Sanjib Kumar; Pandey, Deb Prasad; Shah, Karan Bahadur; Tillack, Frank; Chappuis, Francois; Thapa, Chhabilal; Alirol, Emilie; Kuch, Ulrich (B.P. Koirala Institute of Health Sciences, 2013)