Salim Ali Zimbu
Pan African University Institute for Basic Science, Technology and Innovation (PAUISTI) hosted at Jomo Kenyatta University of Agriculture and Technology (JKUAT). P.O. Box 62000-00200 Nairobi, Kenya
Kenya

Joseph Thuo
Department of Civil Engineering, Dedan Kimathi University of Technology (DeKUT). P.O. Box 657-10100 Nyeri, Kenya.
Kenya

Nathaniel Ambassah
Department of Civil Engineering, Jomo Kenyatta University of Agriculture and Technology (JKUAT). P.O. Box 62000-00200 Nairobi, Kenya.
Kenya