Jacques, Claude
Konemann Verlagsgessellschaft, 1999
Buku Referensi
Pym, Christopher
Robert Hale Limited, 195?
Buku Teks SO
Jacques, Claude
China Konemann 1999,
Buku Referensi
Coe, Michael D.
Thames & Hudson, 2003
Buku Teks SO
Coe, Michael D.
Thames and Hudson, 2003
Buku Teks SO