Attarzadeh, Mahmood, Rahimi, Asghar, Torabi, Benyamin. “Response of Chlorophyll, Relative Water Content and Protein Percentage of Safflower Leaves to Salinity and Foliar Calcium, Potassium and Magnesium Applications.” Journal of Crop Ecophysiology, vol. 10, no. 37, 2016, pp. 269-282.