Hassen, H., هلیاء, Mohammed, A., عبد, Pulus, M. and مناهل 2007. Effect of some Galacones and Traazolate derivatives in the development, growth and differentiation of lettuce plant Lactuca sativa .L. Journal of Education and Science (JES). 20, 1 (Sep. 2007), 226–235. DOI:https://doi.org/10.33899/edusj.2007.162803.