[1] Subregional Office for Education in Southern Africa and N. Maphasa and L. Molapo, "Renewable energy conversion ," UNESCO Subregional Office for Education in Southern Africa/African Publishers' Network, 1999.

Subregional Office for Education in Southern Africa and Maphasa, Nthunt’si and Molapo, Lirahalibonoe, "Renewable energy conversion ," UNESCO Subregional Office for Education in Southern Africa/African Publishers' Network, 1999.

Subregional Office for Education in Southern Africa, Maphasa, N., Molapo, L., (1999). "Renewable energy conversion," UNESCO Subregional Office for Education in Southern Africa/African Publishers' Network.

Subregional Office for Education in Southern Africa, Maphasa, Nthunt’si, Molapo, Lirahalibonoe. (1999). "Renewable energy conversion," UNESCO Subregional Office for Education in Southern Africa/African Publishers' Network.