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Douglas, Carstairs (1873) “{{{1}}}”, in Chinese-English Dictionary of the Vernacular or Spoken Language of Amoy, [With 1923 Supplement after the Appendix by Thomas Barclay, Shanghai: Commercial Press, Ltd.] edition (overall work in Hokkien and English), London: Trübner & Co., page 1; New Edition (With Chinese Character Glosses) edition, London: Presbyterian Church of England, 1899, page 1