A pictorial encyclopedia of decorative ironwork : twelfth through eighteenth centuries
edited by Otto Hoever
Dover, 2001
 Buku Referensi
Stratton, Carol
The art of Sukhothai : Thailand’s golden age, from the mid-thirteenth to the mid-fifteenth centuries : a cooperative study
Oxford Univesity Press, 1981
 Buku Teks SO
Trade during pre_Sriwijaya (4th-5th centuries ad)
 Artikel Jurnal
Pritchard, Earl H.
Anglo-Chinese relations during the seventeenth and eighteenth centuries
Urbana University of Illinois 1930
 Buku Teks
The Legacy of trade reforms in the Arab countries
Austria : The Opec fund dor International Development (OFID), 2006,
 Majalah, Jurnal, Buletin