Maponya, N. i Oluwatayo, I. 2020. Economic Efficiency of Table Grape Production in Waterberg and Sekhukhune Districts, Limpopo Province, South Africa. Zeszyty Naukowe SGGW w Warszawie - Problemy Rolnictwa Światowego. 20, 3 (wrz. 2020), 36–52. DOI:https://doi.org/10.22630/PRS.2020.20.3.16.