Epstein, Catherine, author
Wiley Blackwell, 2015
Buku Teks
Mcdonough, Frank, author
Cambridge University Press , 2000
Buku Teks
Kraus, Bertram S.
Harper & Row, 1964
Buku Teks
Groot, Gerard J.
Columbia University Press, 1951
Buku Teks
Saywell, John J.
University of Toronto Press , 1957
Buku Teks