edited by Francis Loh Kok Wah
Curzon Press, 2002
Buku Teks SO
Noorzila Haji Salleh
Arkib Negara Malaysia, 2009
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Ooi, Kee Beng
ISEAS–Yusof Ishak Institute, 2019
eBooks
Krishna, Anand
Koperasi Global Anand Krishna, 2008
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Artikel Jurnal