1. Department of Architecture and Design, School of Architecture and Built Environment, College of Science and Technology, The University of Rwanda, Kigali P.O. Box 3900, Rwanda
2. Department of Civil, Environmental and Geomatics Engineering, School of Engineering, College of Science and Technology, The University of Rwanda, Kigali P.O. Box 3900, Rwanda
3. Independent Researcher, Kigali P.O. Box 3527, Rwanda