found: 94983430: Fisch, M. Die Kavangojäger im Nordosten Namibias, 1994.
found: Ethnologue:p. 263 (Diriku (Diriko, Gciriku, Rugciriku, Mbogedo, Mbogedu, Shimbogedu, in Namibia and Angola))
found: Fivaz, C. African langs.:p. 62 (Shimbogedu (Diriku, Diriko, Dirico, Gciriku))
found: Voegelin lang.:p. 71 (Mbogedo (Diriku, Diriko, Gciriku))
found: Web site Rumanyo prescribed books, July 9, 2003(Old publications still carry the old name Rugciriku. The name Rumanyo will be reflected in all new and up-graded publications)