1. Old Crow, Yukon territory;Acheson,1981
2. Focus group research and ethnography;Agar;Human Organization,1995
3. Perspectives on the atomistic-type society. Bad friends;Balicki;Human Organization,1968
4. A theory of the allocation of time;Becker;Economic Journal,1965
5. Discrete Choice Analysis: Theory and Application to Travel Demand;Ben-Akiva,1985