Eros Djarot, author
Pustaka Masa, 2000
Buku Teks
Sergeant, Graham, author
Macmillan, 1973
Buku Teks
Cargan, Leonard, author
Wadsworth, 1985
Buku Teks
Bierstedt, Robert, author
McGraw-Hill, 1974
Buku Teks
Masson, VeNeta
Springer Publ ., 1981
Buku Teks