Mohamed S. M. Elkuafi, Farag A. H. Elabani و Saleh M. Al-Zagheed 2024. The Correlation Coefficient for Different Distances in The Transmission and Receiving Process of The Optical System Model. مجلة شمال إفريقيا للنشر العلمي (NAJSP). 2, 3 (2024), 240–248.