Amer, M. S., Majid, M. R., & Ledraa, T. A. (2021). The Riyadh Urban Growth Boundary: An Analysis of the Factors Affecting its Efficiency on Restraining Sprawl. International Journal of Built Environment and Sustainability, 8(3), 17–25. https://doi.org/10.11113/ijbes.v8.n3.704