Erdős, Adél Dorottya, and László Szőllősi. 2021. “The Profitability Analyses of Crop Production Enterprises in Hajdú-Bihar County, Especially in Hajdúböszörmény”. Studia Mundi – Economica 8 (3): 31-45. https://doi.org/10.18531/Studia.Mundi.2021.08.03.31-45.