Oxford Guide to the Bantu LanguagesLutz Marten, Ellen Hurst-Harosh, Nancy C. Kula, Jochen Zeller · First published 2025Open the Tome
Bloomsbury Companion to PhonologyNancy C. Kula, Bert Botma, Kuniya Nasukawa · First published 2010Open the Tome
Continuum Companion to PhonologyNancy C. Kula, Bert Botma, Kuniya Nasukawa · First published 2010Open the Tome