Tan, P. C. (2004). Sejarah Kong Hock Keong dan Pertubuhan Ping Zhang di Pulau Pinang, 1800-1940.
Chicago Style (17th ed.) CitationTan, Poh Choon. Sejarah Kong Hock Keong Dan Pertubuhan Ping Zhang Di Pulau Pinang, 1800-1940. 2004.
MLA (8th ed.) CitationTan, Poh Choon. Sejarah Kong Hock Keong Dan Pertubuhan Ping Zhang Di Pulau Pinang, 1800-1940. 2004.
Warning: These citations may not always be 100% accurate.