Małkus, Tomasz. “The Main Factors in a Methodology for Evaluating Cooperation With Service Providers in HR Outsourcing”. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, no. 910 (December 19, 2015): 51–69. Accessed September 20, 2024. https://aoc.uek.krakow.pl/index.php/krem/article/view/781.