Patterns of Feedback Used in the E-Learning System from the Teachers of the First Cycle in the Governorate of Muscat at the Sultanate of Oman. jperc [Internet]. 2023 Feb. 13 [cited 2025 May 6];19(74):376-414. Available from: https://jperc.uobaghdad.edu.iq/index.php/jperc/article/view/1332