In This Field, Hamisi Babusa has One Publication:

A Unified Orthography For Bantu Languages of Kenya (Kipokomo, Mijikenda, Kikuria, Gikuyu, Luhya, Dawida, Ekegusii, Kiikamba, Kiembu, Kimeru, Kiswahili)

Hamisi Babusa Co-authored This Book With other Linguists. They came UP With a Unified Orthography for Bantu languages Found in Kenya. The Book was Published in 2012 by The Center for Advanced Studies of African Society (CASAS)