Kral, Zygmunt. “A Method for Assessing Leadership Competences”.
Krakow Review of Economics and Management Zeszyty Naukowe Uniwersytetu Ekonomicznego W Krakowie
, no. 1(995), Sept. 2022, pp. 117-36,
https://doi.org/10.15678/ZNUEK.2022.0995.0107
.