Al-Chammaa, M., F. Al-Ain, and F. Kurdali. “Effect of Salicylic Acid on Growth, Nodulation and N2-Fixation in Water Stressed Chickpeas Using 15N and 13C”. Advances in Horticultural Science, vol. 33, no. 3, Oct. 2019, pp. 391-0, doi:10.13128/10.13128/ahs-23289.