1. 2016
  2. van der Meer, P. H., & Wielers, R. (2016). Happiness, unemployment and self-esteem. (SOM Research Reports; Vol. 16016-HRM&OB). University of Groningen, SOM research school.
  3. 2014
  4. 2003
  5. Schilderman, H., & Felling, B. (2003). Sacramental Incentives in Pastoral Ministry: Research Report. s.n.
  6. 2002
  7. Glebbeek, A. C., & Bax, E. H. (2002). Labour turnover and its effects on performance: an empirical test using firm data. (SOM Research Reports). Groningen: University of Groningen, SOM research school.

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