Liên quan Zippo, mù tạt và em Zippo Zip Zip Zip2 Zip line Zipeprol Ziprasidone Ziphius Zip, Zip, Zip Zipoetes I của Bithynia
Tài liệu tham khảo WikiPedia: Zip line http://www.collinsdictionary.com/dictionary/englis... http://knol.google.com/k/history-of-the-zipline http://equitabletourism.org/readfull.php?AID=1402 https://books.google.com/books?id=47okqR2JA-QC&lpg... https://books.google.com/books?id=yZ3JA4Jm-oMC&lpg... https://web.archive.org/web/20120225073608/http://...
