International Stamp & Coin Agency. (1978). Coin & paper money catalogue of Malaysia, Singapore & Brunei, 1845-1977 (2d ed.). International Stamp & Coin Agency.
Lua i Stíl Chicago (17ú heag.)International Stamp & Coin Agency. Coin & Paper Money Catalogue of Malaysia, Singapore & Brunei, 1845-1977. 2d ed. Kuala Lumpur: International Stamp & Coin Agency, 1978.
Lua MLA (8ú heag.)International Stamp & Coin Agency. Coin & Paper Money Catalogue of Malaysia, Singapore & Brunei, 1845-1977. 2d ed. International Stamp & Coin Agency, 1978.
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