Wahdan, A., H. Effat, N. Abdallah, and K. Elwan. “Design an Optimum Highway Route Using Remote Sensing Data and GIS-Based Least Cost Path Model, Case of Minya-Ras Ghareb and Minya-Wahat-Bawiti Highway Routes, Egypt”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 56, no. 1, June 2019, pp. 157-81, https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/4863.