e.g. Pimentel p.242 asserts it was at Rio Nunez. Barros (p. 118-20), Cortesão (p. 13) assert it was the Geba River. Confusingly, Castilho identifies his death at two different places: Rio Nunez (p. 193) and the Buba River ( p. 185n).
Hair, Paul Edward Hedley, "The Use of African Languages in Afro-European contacts in Guinea : 1440–1560", [in] "Sierra Leone Language Review", no. 5, 1966, p. 13 [1]
