NDADI, Vinnia Helao. Breaking contract - the go-slow / Vinnia Ndadi. - London ; Lusaka, 1988.
UNITED NATIONS INSTITUTE FOR NAMIBIA (UNIN)
UNITED NATIONS INSTITUTE FOR NAMIBIA (UNIN)
http://192.168.151.11//ndadi-vinnia-helao-breaking-contract-go-slow-vinnia-ndadi-london-lusaka-1989
PA 4/1/1/540(NAM 968.8 Int)