Biniyam Aschalew, and Dr. Liu Peng. “Management of the Contract Claim Presentation and Response in Ethiopia: The Case of Addis Ababa”. International Journal of Research in Science & Engineering 2, no. 02 (March 30, 2022): 41–51. Accessed April 26, 2026. https://hmjournals.com/ijaap/index.php/IJRISE/article/view/3251.