جورج لطيف زكي سيدهم. The effect of using modern graphic techniques on the production cost of direct TV programs in the Egyptian satellite channels "Field study. ijsc [Internet]. 2020 Jul. 8 [cited 2026 Feb. 27];7(04):46-65. Available from: https://revue.univ-mosta.dz/index.php/ijsc/article/view/1244