Shoaib , Ezzedine, and Miftah Abdulqader Batu. “Determination of the Vitality of Pollen Grains in Arganica Thapsia Plant in the Green Mountain Region, Libya”. Al-Mukhtar Journal of Sciences, vol. 29, no. 1, Dec. 2014, pp. 140-8, doi:10.54172/mjsc.v29i1.105.