Wanjiku, Josephine Wanjiru; Gikwa, Caroline W.; Macharia, Mary Wandia(Journal of Applied Sciences, Engineering and Technology for Development, 2013-07-15)
Byiringiro, Jean Bosco; T. J., Ko; Kim, Ho-Chan; Lee, In Hwan(Proceedings of the 2012 Mechanical Engineering Conference on Sustainable Research and Innovation, 2012-05-03)