Nhamo. Breakthrough: Corporate South Africa in a Green Economy. Africa Institute of South Africa.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNhamo. Breakthrough: Corporate South Africa in a Green Economy. Africa Institute of South Africa.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNhamo. Breakthrough: Corporate South Africa in a Green Economy. Africa Institute of South Africa.
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