Waal, Edmund de, author
Guild Publishing, , [date of publication not identified]
Buku Referensi
Freyberg, Annabel, author
Laurence King Publishing, ,
Buku Referensi
edited by Rajat Banerjee and Indranil Manna
Woodhead, 2013
eBooks
Chiang, Yet Ming, author
John Wiley & Sons, 1997
Buku Teks
Cosentino, Peter
Tiger Books International, 1993
Buku Teks