American Chemical Society, 1986
Buku Teks
American chemical Society , 1986
Buku Referensi
Williams & Willkins, 1989
Buku Teks
Gibaldi, Joseph
The Modern Language Association of America, 1998
Buku Teks
Iacone, Salvatore J., author
Carrer Press, 2003
Buku Teks