Hacen Elaadjam, H. 2023. Perceptions of social studies teachers in Muscat province about the concept of co-existence and the importance of raising students on it. : تاريخ الاستلام:09/05/2021 تاريخ القبول:09/01/2023. Human Resources Development Research. 18, 01 (May 2023), 298–324.