Ngwa, C.A. 2003. Development Authorities as Agents of Socio-Economic Change: An Historical Assessment of the Upper Nun Valley Development Authority (Undwa) in the Ndop Region of Cameroon, 1970–1995. Nordic Journal of African Studies. 12, 2 (Jun. 2003), 18. DOI:https://doi.org/10.53228/njas.v12i2.327.