Bošković-Rakočević, Ljiljana, Nenad Pavlović, Jelena Mladenović, Miloš Marjanović, Jasmina Zdravković, and Ivana Tošić. “Yield and Quality of Lettuce (Lactuca Sativa L.) Depending on Variety and Type of Nitrogen Fertilizer”. Emirates Journal of Food and Agriculture 35, no. 8 (June 1, 2023). Accessed September 19, 2025. https://ejfa.me/index.php/journal/article/view/3128.