Shlahi, S.A. and Al- Hattab, Z.N. 2014. The genetic effect of N-methyl-N-nitro-N-nitrosoguanidine on callus induced from mature embryos of beans Phaseolus vulgaris. Journal of Biotechnology Research Center. 8, 4 (Dec. 2014), 79–84. DOI:https://doi.org/10.24126/jobrc.2014.8.4.389.