Cowen, Zelman, author
Butteworths, 1983
Buku Teks
Arif Gosita, author
Akademika Pressindo, 1987
Buku Teks
editor, Wila Chandrawila Supriadi
Mandar Maju, 1998
Buku Teks
edited by P.M.S. Hacker and J. Raz
Clarendon Press, 1988
Buku Teks
edited by Warren J. Samuels and A. Allan Schmid
Kluwer-Nijhoff, 1981
Buku Teks