M. A. Al- Omari, F. Y. Farha, and A. H. Shaaban, “Practicing degree of problem- solving skills and their relationship to the academic achievement of fourth- grade students in the schools of the Syrian city of Hama”, JEPS, vol. 6, no. 12, pp. 23–44, Mar. 2022, doi: 10.26389/AJSRP.I190821.