Du Plessis, T. 2020. The officialisation of South African Sign Language: implications for place-name planning. Language Matters. Studies in the Languages of Africa 51(3): 66-86.
Du Plessis, T. 2022. The Officialisation of South African Sign Language—What Is There to Gain? Language Matters. Studies in the Languages of Africa 53(3): 47-71. Published onlilne 3 October 2022.
Du Plessis, T. 2023. Die opkoms van Suid-Afrikaanse Gebaretaal as Suid-Afrika se 12de amptelike taal. [The rise of South African Sign Language as official language of South Africa] Tydskrif vir Geesteswetenskappe, 63(3), 585-614.
Bruwer, B., Van Staden, A. & Du Plessis, T. 2024. A Bilingual-Bicultural literacy programme for deaf learners in Namibia. Perspectives in Education 42(2): 267-281. DOI: https://doi.org/10.38140/pie.v42i2.7779.