Maurer, Frances A.
Elsevier Saunders, 2013
Buku Teks
Eagleton, Clyde
New York University press, 1945
Buku Teks
Fairbairn, Anne
Angus & Robertson, 1983
Buku Teks
Butlin, S.J.
Australian War Memorial, 1955
Buku Teks
Holder, Robyn
Rosda Jayaputra , 1986
Buku Teks