Boughey, Arthur S.
Macmillan, 1973
Buku Teks SO
Southwood, T.R.E.
Chapman and Hall, 1968
Buku Teks SO
Cuomo, Chris J.
Routledge , 1998
Buku Teks SO
Sinclair, Michael
Washington Sea Grant Program, 1988
Buku Teks SO
edited by Alan C. Swedlund and George J. Armelagos
Bergin and Garvey, 1990
Buku Teks SO