Liên kết ngoài Tiếng_Punjab

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WikiPedia: Tiếng_Punjab http://www12.statcan.gc.ca/census-recensement/2011... http://www12.statcan.ca/census-recensement/2006/dp... http://opishposh.com/the-top-10-most-spoken-langua... http://www.idref.fr/027655806 http://id.loc.gov/authorities/subjects/sh85097451 http://d-nb.info/gnd/4211719-7 http://www.crulp.org/Publication/Crulp_report/CR02... http://glottolog.org/resource/languoid/id/panj1256 http://www.census.gov.pk/MotherTongue.htm http://www.ne.se/spr%C3%A5k/v%C3%A4rldens-100-st%C...