Aljibouri, Abedaljasim M., Silva A. Yakoub Zokian, and Ali H. Almusawi. 2014. “Response of Four Medical Plants of Euphorbia Species in Callus Initiation in Vitro”. Journal of Biotechnology Research Center (JOBRC) 8 (1):66-71. https://doi.org/10.24126/jobrc.2014.8.1.310.