“The Role of Standard Costs in Enhancing Cost Control Efficiency: An Applied Study on a Leading Libyan Telecommunications Company”. Diwan Al-Ma’rifah Journal for Applied and Human Sciences 1, no. 1 (March 11, 2026): 13–31. Accessed October 5, 2026. https://diwan-almarifah.com.ly/index.php/diwan-almarifah/article/view/6.