Gichane, Michael M.; Byiringiro, Jean Bosco; Chesang, Andrew K.; Nyaga, Peterson M.; Langat, Rogers K.; Smajic, Hasan; Kiiru, Consolata W.(MDPI, 2020-04-21)
Maina, Francis Irungu; Nahashon Osinde; Japheth Ka’pesha Odira; Wanjiru, Patrick Kariuki; Mwangi, Margaret Wanjiku(EJERS, European Journal of Engineering Research and Science, 2020-10)