Sheldon, Donald H., author
J. Ross Publishing, Inc., 2006
Buku Teks
Sheldon, Sidney, author
Gramedia, 2003
Buku Teks
De Vany, Arthur S., author
John Wiley & Sons, 1981
Buku Teks
Stevenson, Robert Louis, author
Everyman's Library, 1992
Buku Referensi
Romeijn, H.J.
Moorman`s Periodieke Pers, N.V., 1939
Buku Teks