Germano, Mwabu; Christopher, B. Barrett; Mary, Omosa; Antony, K. M. Kilele; Godfrey, K. Ndeng’e; Nelson, Mango; Josephat, Cheng’ole; Gatarwa, Kariuki; Wesley, Ongadi; Willis, Oluoch-Kosura; Paswel, P. Marenya; Frank, Place; Damiano, K. Manda; Enos, HN; Walter, Odhiambo; John, M. Omiti; David, I. Muthaka(University of Nairobi,College of humanities and social sciences,, 2004)
