Sergewa, S. et al. 2017. Response of hardwood cuttings of some olive cultivars (Olea europea L.) to time of taking cuttings and treatments with different concentrations of indole butyric acid (IBA). Al-Mukhtar Journal of Sciences. 32, 2 (Dec. 2017), 149–158. DOI:https://doi.org/10.54172/mjsc.v32i2.186.