Tham khảo Chất_kiềm

  1. Chambers's encyclopaedia: a dictionary of universal knowledge, Volume 1. J.B. Lippincott & Co. 1888. tr. 148.
  2. Davis, Jim and Milligan, Mark (2011). Why is Bear Lake so blue? Error in Webarchive template: Empty url. Public Information Series 96. Utah Geological Survey, Department of Natural Resources