Cooper, Michael D., author
Wiley, 1996
Buku Teks
Koko Srimulyo, author
Airlangga University Press, 2022
Buku Teks
Chandos , 2015
eBooks
Taylor, Peter J., author
Glorier International, 1999
Buku Referensi
Amos, Julie-Ann, author
Glorier International, 2001
Buku Referensi