Charles Ngwena, Ilze Grobbelaar‐du Plessis, Helene Combrinck, & Serges Djoyou Kamga. (2015). African Disability Rights Yearbook Volume 3 2015. Pretoria University Law Press (PULP).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCharles Ngwena, Ilze Grobbelaar‐du Plessis, Helene Combrinck, और Serges Djoyou Kamga. African Disability Rights Yearbook Volume 3 2015. Pretoria University Law Press (PULP), 2015.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCharles Ngwena, et al. African Disability Rights Yearbook Volume 3 2015. Pretoria University Law Press (PULP), 2015.
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