Nouar, D. and Popovics, P.A. 2023. Efficiency analysis of apple and grape producers: A case study of Hungarian SMEs’ producing apples and grapes in 2021. Studia Mundi – Economica. 10, 4 (Dec. 2023), 32–46. DOI:https://doi.org/10.18531/sme.vol.10.no.4.pp.32-46.