Yaseen, Arshad Abdulkhalq, and Mária Takácsné Hájos. “The Effect of Willow Extract, Bistep and Their Combination on Some Quality Parameters of Lettuce (Lactuca Sativa L.)”. Acta Agraria Debreceniensis, no. 1 (June 1, 2021): 239–247. Accessed May 2, 2024. https://ojs.lib.unideb.hu/actaagrar/article/view/8537.