Clarke, Marcus, author
Hale & Iremonger, c1983
Buku Teks
Utley, Freda
The Bobbs-Merrill Company, 1947
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Ooi, Kee Beng, author
ISEAS–Yusof Ishak Institute, 2019
eBooks
Artikel Jurnal
Taleb, Nassim Nicholas, author
Penguin Random House, 2004
Buku Teks