Porteous, Andrew
John Wiley & Sons, 1992
Buku Referensi
Gunton, Tony
NCC Blackwell, 1993
Buku Teks
Dorian, A.F.
Elsevier Scientific Publishing Company, 1981
Buku Referensi
Gunton, Tony
NCC Blackwell, 1993
Buku Teks SO
Gunton, Tony
NCC Blackwell, 1993
Buku Teks SO