Wolf, Stanley, author
Prentice-Hall, 1983
Buku Referensi
Wolf, Stanley, author
Prentice-Hall, 1983
Buku Referensi
McGraw-Hill Book Comp., 1971
Buku Teks
Golding, E.W., author
Pitman Paperbacks, 1970
Buku Teks
Carr, Joseph J., author
Reston, 1979
Buku Teks