https://www.koeppe.de/titel_linguistics-across-africa
Among the CCI members, Takada (pp.335-348) and Widlok (pp.349-362) contributed chapters.
Beyer, K., Boden, G., Koehler, B., & Zoch, U. (Eds.)(2019) Linguistics across Africa: Festschrift for Rainer Vossen. Cologne, Germany: Ruediger Koeppe Verlag Koeln.