edited by Susan Hornby, Zoe Clarke
Facet, 2004
Buku Teks
Barnes, Harry Elmer
Prentice Hall of India, 1966
Buku Teks
Zeng, Fan-Gang, editor
Springer, 2011
eBooks
edited by Gerald W. Whitted
Pan American World Airways, 1971
Buku Referensi
edited by Gerald W. Whitted
Pan American World Airways, 1963
Buku Referensi