I. T. Abed – Ali, and C. A. Emshary. “Write – Read All-Optical System Based on Diffraction Ring Patterns in Aloe, Cresson and Taramira Vegetable Oils”. University of Thi-Qar Journal, vol. 13, no. 2, Apr. 2019, pp. 32-41, doi:10.32792/utj.v13i2.133.