Andi Achdian, author
Kekal presss, 2011
Buku Teks
Summons, Elizabeth
Pegaus Books, 1979
Buku Teks
Neale, J. E., author
Alden Press, 1950
Buku Referensi
Waldman, Milton
Houghton Mifflin, 1933
Buku Teks
edited by Richard L. Greaves
D.C. Heath, 1974
Buku Referensi