Becker, H. S. (1960). “Notes on the Concept of Commitment”. American Journal of Sociology66: 32. doi:10.1086/222820. JSTOR2773219.
Meyer, J. P.; Allen, N. J. (1991). “A three-component conceptualization of organizational commitment”. Human Resource Management Review1: 61. doi:10.1016/1053-4822(91)90011-Z.