Thực đơn
Nickel (tiền xu Hoa Kỳ) Chú thíchThực đơn
Nickel (tiền xu Hoa Kỳ) Chú thíchLiên quan
Nickel Nickel(II) sulfat Nickel tetracarbonyl Nickel (tiền xu Hoa Kỳ) Nickel(II) chloride Nickel(II) hydroxide Nickelodeon Nickel(II) bromide Nickel(II) nitrat Nickel(II) oxalatTài liệu tham khảo
WikiPedia: Nickel (tiền xu Hoa Kỳ) http://news.coinupdate.com/cost-to-make-penny-and-... https://www.history.com/news/the-hidden-history-of... https://www.wsj.com/articles/its-time-to-abolish-t... https://www.brookings.edu/opinions/lets-drop-penni... https://www.congress.gov/bill/111th-congress/house... https://www.ecfr.gov/current/title-31/subtitle-B/c... https://www.federalregister.gov/documents/2007/04/... https://www.usmint.gov/coins/coin-medal-programs/c... https://www.usmint.gov/learn/coin-and-medal-progra... https://www.usmint.gov/learn/kids/about-the-mint/n...