Khassawneh, F. A. S. ., and A. M. . Al-refai. “Developing a Unit from the Geography Textbook in Light of the Circular Economy and Measuring Its Effectiveness in Developing students’ Understanding and Comprehension of Geography and Rationalizing Consumption”. International Journal of Innovative Research and Scientific Studies, vol. 8, no. 4, June 2025, pp. 1589-9, doi:10.53894/ijirss.v8i4.8138.