2015 “Expanding Horizons in the Study of World Englishes with the 1.9 Billion Word Global Web-based English Corpus (GloWbE)”. English World-Wide36: 1–28. doi: 10.1075/eww.36.1.01dav
2020 “Protest American English Influence or Protest Against It? Changing Prepositions in Nigerian Twitter English”. Discourse and Interaction13: 55–74. doi: 10.5817/DI2020‑2‑55
2018 “Acoustic Features of the Non-Ethnically Marked Kenyan English in the Speech of Selected University Lecturers”. Ph.D. Dissertation, Kenyatta University.
2012 “Standards of English in East Africa”. InRaymond Hickey, ed.Standards of English. Codified Varieties around the World. Cambridge: Cambridge University Press, 229–255. 10.1017/CBO9781139023832.013