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The stages of social research
Caplovitz, David, (1983)
La ricerca sociale : logica, strategie, tecniche
Statera, Gianni, (1997)
Finding out : conducting and evaluating social research
True, June Audrey, (1989)
Functional leadership and popularity in small groups
Gardner, Godfrey, (1956)
Technology as an explanatory variable in the study of workersʹ attitudes
Vaughan, Edward, (1976)
The measurement of supervisory methods
Argyle, Michael, (1957)