LATROBE, CHRISTIAN IGNATIUS: Journal of a Visit to South Africa, in 1815, and 1816. With some Account of the Missionary Settlements of the United Brethren, near the Cape of Good Hope. London, L.B. Seeley, 1818.

SMITH, EDWIN, WILLIAM: The Ila-Speaking Peoples of Northern Rhodesia. Two volumes. London, Macmillan and Co., 1920.

GON‚ALVES, JOAQUIM AFONSO: ... Arte China constante de alphabeto e grammatica comprehendendo modelos das differentes composicoens. Macao, impressa com licença regia no real Collegio de S. Jose, 1829.

BRIAND, PIERRE CESAR: Les jeunes voyageurs en Asie, ou description raisonnée des divers pays compirs dans cette belle partie du monde. Contenant des détails sur le sol, les productions, les curiosités, les moeurs et coutumes des habitans, les hommes célèbres, et des anecdotes curieuses. Eight volumes. Paris, Hivert, 1829.

MOLLIEN, GASPARD THÉDORE: Travels in the Interior of Africa, to the Sources of the Senegal and Gambia; Performed by Command of the French Government, in the year 1818. Edited by T.E. Bowdich. London, Henry Colburn & Co., 1820.