Tham khảo Kali_chromi_alum

  1. 1 2 3 Holleman, Arnold F.; Wiberg, Egon; Wiberg, Nils (1985). “Chromium”. Lehrbuch der Anorganischen Chemie (bằng tiếng Đức) . Walter de Gruyter. tr. 1082–1095. ISBN 3-11-007511-3.Quản lý CS1: ngôn ngữ không rõ (liên kết)
  2. 1 2 Gerd Anger, Jost Halstenberg, Klaus Hochgeschwender, Christoph Scherhag, Ulrich Korallus, Herbert Knopf, Peter Schmidt, Manfred Ohlinger, "Chromium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2005. doi:10.1002/14356007.a07_067
  3. Brown, E. M.; Dudley, R.L.; Elsetinow A. R. (1997). “A Conformational Study of Collagen as Affected by Tanning Procedures”. Journal of the American Leather Chemists Association. 92: 225–233.
  4. British Journal of Photography, vol 23