Princeton University Press, Princeton, N.J.. ISBN 0-691-04910-6* Inskipp, Carol; Inskipp, Tim & Sherub (2000): The ornithological importance of Thrumshingla National Park, Bhutan.
Princeton University Press, Princeton, N.J.. ISBN 0-691-04910-6* Inskipp, Carol; Inskipp, Tim & Sherub (2000): The ornithological importance of Thrumshingla National Park, Bhutan.