Ali Aden, Waiss; Zheng, Jianfeng; Ullah, Irfan; Safdar, Muhammad (2022). "Public Preferences Towards Car Sharing Service: The Case of Djibouti". Frontiers in Environmental Science10. doi:10.3389/fenvs.2022.889453. ISSN2296-665X.
Ali Aden, Waiss; Zheng, Jianfeng; Ullah, Irfan; Safdar, Muhammad (2022). "Public Preferences Towards Car Sharing Service: The Case of Djibouti". Frontiers in Environmental Science10. doi:10.3389/fenvs.2022.889453. ISSN2296-665X.