جعفر ر, السموءل صالح, هديل عيسى. Studying and Designing Photonic Crystal Fiber using Fractal Engineering. Tuj-eng [Internet]. 2023Dec.7 [cited 2024Jul.27];45(5):103-16. Available from: https://journal.tishreen.edu.sy/index.php/engscnc/article/view/14283