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Social research : a study in methods of gathering data
Lundberg, George A., (1950)
Qualitative research methods for the social sciences
Berg, Bruce L., (2001)
Implicit assumptions about the object of research in social research methods
Maschewsky, Werner, (1980)
Binary games as models of public goods provision
Hovi, Jon, (1986)
Hvorfor økonomiske sanksjoner virker : tross alt
Hovi, Jon, (2001)
Promoting cooperation through institutional design : discrimination and voluntary entry into colluding groups
Hovi, Jon, (1990)