Epstein, Israel
New World Press, 1956
Buku Teks SO
Waung, W.S.K.
Heinemann Educational, 1971
Buku Teks SO
White, Theodore H.
Bantam Books, 1968
Buku Teks SO
Franke, Wolfgang
University of South Carolina Press, 1981
Buku Teks SO
Cohen, Paul A.
Routledge, 2003
Buku Teks SO