1. Postgraduate Student, Dept. of Construction Technology and Management, Institute of Technology, Hawassa Univ., P.O. Box 05, Hawassa, Ethiopia.
2. Assistant Professor, Dept. of Construction Technology and Management, Institute of Technology, Hawassa Univ., P.O. Box 05, Hawassa, Ethiopia (corresponding author). ORCID: .
3. Lecturer, Dept. of Construction Technology and Management, Institute of Technology, Hawassa Univ., P.O. Box 05, Hawassa, Ethiopia.