Mwemba, Joseph B. Kalaba. - [Lusaka] : Longmans of Zambia, [1966] - Longmans' Tonga series ; bbuku 1 . - Longmans Tonga series ; bk. 1 . Subjects--Topical Terms: Tonga language (Zambezi) -- Readers.--Tonga language (Zambezi) -- Readers.