Ibraheem , Y., I. Pinker, and M. Böhme. 2013. “A COMPARATIVE STUDY BETWEEN SOLID AND LIQUID CULTURES RELATIVE TO CALLUS GROWTHAND SOMATIC EMBRYO FORMATION IN DATE PALM (PHOENIX DACTYLIFERA L.) CV. ZAGHLOOL”. Emirates Journal of Food and Agriculture 25 (11):889-98. https://doi.org/10.9755/ejfa.v25i11.16661.