UCAR, YUSUF, ABDULLAH KADAYIFCI, IBRAHIM ERDAL, GOKHAN I. TUYLU, and ULAS SENYIGIT. 2010. “Effect of Potassium Fertilization on Lettuce´ S (Lactuca Sativa L.) under Different Sodium Media”. Asian Journal of Chemistry 19 (5):4083-92. https://asianpubs.org/index.php/ajchem/article/view/13317.