1. AKRSP [Aga Khan Rural Support Programme] (1988): Fifteenth Annual Review. Gilgit: Aga Khan Rural SupportProgramme.
2. Black, R., Ham, S. and Weiler, B. (2001): Ecotour guide training in less developed countries: some preliminaryresearch findings. Journal of Sustainable Tourism, 9, 147-156.
3. Butz, D. (1995): Legitimating portering regulation in an indigenous mountain community in Northern Pakistan. Environment and Planning D: Society and Space, 13, 381-414.
4. Butz, D. (2006): Tourism and portering: labour relations in Shimshal, Gojal Hunza. In: Kreutzmann H, editor. Karakoram in Transition: Culture, Development, and Ecology in the Hunza Valley. Karachi, Oxford University Press, pp394-403.
5. Christ, C. (1994): Kenya makes revenue sharing top priority. Ecotourism Society Newsletter, 4, 1-2.