edited Marjorie Dent Candee
H.W. Wilson, 1955
Buku Teks SO
edited by Anna Rothe
The H.W. Wilson Company, 1953
Buku Teks SO
Craven, Paul R.
Dickenson Publishing, 1968
Buku Teks SO
Mundy, Liza
Pocket Star Books, 2008
Buku Teks SO
Gopal, Sarvepalli
Oxford University Press, 1992
Buku Teks SO