Burdette, Marcia M.
Zambia : between two worlds
Westview Press, 1988
 Buku Teks SO
Edwards, Cecil
Bruce of Melbourne man of two worlds
Heinemann, 1965
 Buku Teks SO
Sherman, Andrew J.
Franchising & licensing : two ways to build your business
Amacom, 1999
 Buku Teks SO
Ebenstein, William
Two ways of life: the communist chalengge to democracy
Holt Rinehart and Winston, 1964
 Buku Teks SO
Two ways of seeing : an anthology of poems and photographs
edited by Wilson G. Pinney and Allen Say
Little, Brown, 1971
 Buku Teks SO