Harari, Ehud
University of California Press, 1973
Buku Teks
McAdams, Alan K., author
Columbia University Press , 1964
Buku Teks
Twomey, David P.
South-Western Pub, 1985
Buku Teks
Caraway, Teri L., author
Cambridge University Press, 2020
eBooks
University of Queensland Press , 1975
Buku Teks