Rathnachandra, S.D. Dilini, i S.H. Pushpa Malkanthi. 2025. „Sustainable Management of Challenges in the Agri-Food Supply Chain: The Case of Upcountry Vegetable Farmers in Nuwara Eliya District, Sri Lanka”. Zeszyty Naukowe SGGW W Warszawie - Problemy Rolnictwa Światowego 25 (2):49-68. https://doi.org/10.22630/PRS.2025.25.2.8.