Liên quan Phong bì Phong Bình, Gio Linh Phong Bình, Phong Điền (Thừa Thiên Huế) Phong Bình (định hướng) Phong ba (thực vật) Phong Bạo Vũ Phong bạc Phong Bá (vị thần Trung Quốc) Phong bế
Tài liệu tham khảo WikiPedia: Phong_bì http://www.guinnessworldrecords.com/records-4000/l... http://www.royalmail.com/portal/rm/jump2?catId=400... http://www.worldrecordacademy.com/biggest/img/2131... http://www.worldrecordacademy.com/biggest/largest_... http://www.npa.din.de/cmd?artid=3565002&bcrumbleve... http://www.npa.din.de/cmd?level=tpl-art-detailansi... http://www.postalmuseum.si.edu/industrywhitepapers... http://envelope.org/index.v3page?ct=cdisplay&nt=tr... http://www.envelope.org/file_depot/0-10000000/0-10... http://www.iso.org/iso/iso_catalogue/catalogue_tc/...
