Não informado. (2020). South African National Scientific Programmes Report. National Scientific Programmes Unit, Council for Scientific and Industrial Research.
Lua i Stíl Chicago (17ú heag.)Não informado. South African National Scientific Programmes Report. Pretoria, Africa do Sul: National Scientific Programmes Unit, Council for Scientific and Industrial Research, 2020.
Lua MLA (8ú heag.)Não informado. South African National Scientific Programmes Report. National Scientific Programmes Unit, Council for Scientific and Industrial Research, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.