Dajnoki, Krisztina, Mária Ujhelyi, and Roland Filep. 2021. “Investigation of Motivation Based on Herzberg’s Two-Factor Model and Self-Determination Theory”. Studia Mundi – Economica 8 (2): 2-12. https://doi.org/10.18531/Studia.Mundi.2021.08.02.2-12.