Kaleem, S.; Hassan, F.; Bukhsh, M.; Mahmood, I.; Ullah, R.; Ahmad, M.; Wasaya, A. Oil and Oil Quality in Different Circles of Mature Sunflower Head As Influenced by Varying Environments. Pak. J. Nutr. 2011, 10 (4), 373–377. https://doi.org/10.3923/pjn.2011.373.377.