Mbanefo, Louis Nnamdi
Profesional Books Limited, 1983
Buku Teks
Cheong, Kwee Thiam
LexisNexis, 2016
Buku Teks
Branch, Alan E.
Chapman & Hall, 1979
Buku Teks
Kendall, Lane C.
Cornell Maritime Press , 1986
Buku Teks
Grime, Robert P.
Sweet and Maxwell, 1978
Buku Teks