Kisumbwa
Kahigi, Kulikoyela K. 2000. Urefu wa irabu katika Kisumbwa. Katika: Lugha za Tanzania / Languages of Tanzania: studies dedicated to the memory of Prof. Clement Maganga (CNWS publications, no 89), uk.51-65. Kuhaririwa na Kulikoyela K. Kahigi, Yared M. Kihore & Maarten Mous. Leiden: Research School of Asian, African and Amerindian Studies (CNWS), Leiden University.