Artikel Jurnal
edited by Colin Harris, Brian Clifford
British Library, 1985
Buku Teks
Lawrence Erlbaum, 2004
Buku Teks
Lawrence Erlbaum, 2004
Buku Teks
edited by Rebecca B. Rubin, Philip Palmgreen and Howard E. Sypher
Lawrence Erlbaum Associates, 2004
Buku Teks