Osborne, Milton E., author
Allen & Unwin, 2016
Buku Teks
Osborne, Milton, author
Allen& Unwin , 2000
Buku Teks
Osborne, Milton
Allen & Unwin, 1997
Buku Teks
McGee, R. Jon, author
McGraw-Hill, 2012
Buku Referensi
Tarling, Nicholas, author
New Zealand Asia Institute , 2000
Buku Teks