1. Cimatti, B.: Definition, development, assessment of soft skills and their role for the quality of organizations and enterprises. Int. J. Q. Res. 10(1), 97–130 (2016)
2. McClelland, D.C.: Testing for competence rather than for intelligence. Am. Psychol. 28. https://www.therapiebreve.be/documents/mcclelland-1973.pdf
3. Spencer, L.I.: Competence at work. L. Spencer, S. Spencer [TRANS. A. Yakovenko]. HIPPO Publishing House, Moscow (2010)
4. De Villiers, R.: The incorporation of soft skills into accounting curricula: preparing accounting graduates for their unpredictable futures. Meditari Acc. Res. 18(2), 1–22 (2010)
5. Heckman, J.J., Kautz, T.: Hard evidence on soft skills. Lab. Econ. 19(4), 451–464 (2012)