Edwards, Cecil
Bruce of Melbourne man of two worlds
Heinemann, 1965
Buku Teks
Burdette, Marcia M.
Zambia : between two worlds / Marcia M. Burdette
Westview Press, 1988
Buku Teks
Sherman, Andrew J.
Franchising & licensing : two ways to build your business
Amacom, 1999
Buku Teks
Ebenstein, William
Two ways of life: the communist chalengge to democracy
Holt Rinehart and Winston, 1964
Buku Teks
Hackforth-Jones, Penne
Barbara Baynton : between two worlds / Penne Hackforth-Jones
Penguin Books, 1989
Buku Teks