Tham khảo John_Crawfurd

Tài liệu tham khảo

WikiPedia: John_Crawfurd http://adb.anu.edu.au/biography/torrens-robert-274... http://epress.anu.edu.au/foreign_bodies/pdf/whole_... http://nla.gov.au/nla.news-article13169823?searchT... http://www.oup.com/oxforddnb/info/freeodnb/librari... http://www.pbenyon.plus.com/18-1900/D/01378.html http://vannghebrvt.com/post/hac-lang-lang-nghe-det... http://seasiavisions.library.cornell.edu/catalog/s... http://www.vjol.info/index.php/ncpt-hue/issue/view... //dx.doi.org/10.1093%2Fref:odnb%2F6651 //dx.doi.org/10.1215%2Fed-30-jane-welsh-carlyle-jo...