^Vilho Shigwedha & Lovisa Nampala (2006). Aawambo Kingdoms, History and Cultural Change. Perspectives from Northern Namibia. Switzerland: P. Schlettwein Publishing. p. 80.
Sources
Peltola, Matti (1958). Sata vuotta suomalaista lähetystyötä 1859–1959. II: Suomen Lähetysseuran Afrikan työn historia [One Hundred Years of Finnish Missionary Work 1859–1959. II: The History of FMS's Missionary Work in Africa]. Helsinki: The Finnish Missionary Society.