Brown, Robert H.
Witherby & co. Ltd., 1975
Buku Teks
Koh, Soon Kwang, Peter
Longmans, 1989
Buku Teks
Mustill, Michael J., Sir, author
Steven & Sons, 1981
Buku Teks
Brown, Robert H.
Witherby , 1975
Buku Teks
Buglass, Leslie J., author
Cornell Maritime Press, 1991
Buku Teks