English Usage in Southern Africa (active from 1970–1992) published observations on the usage and misusage of the English language in Southern Africa. It is continued by Languange Matters: Studies in the Languages of Africa, which can be accessed from https://www.tandfonline.com/rlms20
Volumes 22 and 23 can be accessed from https://www.tandfonline.com/loi/rlms19
The word lists in volumes 1–4 were collated and published as A Dictionary of English Usage in Southern Africa, edited by D. R. Beeton and Helen Dorner (Cape Town: Oxford University Press, 1975).