Pautan luar Hidroksil

  • Reece, Jane; Urry, Lisa; Cain, Michael; Wasserman, Steven; Minorsky, Peter; Jackson, Robert (2011). "Unit 1, Chapters 4 & 5." Dalam Campbell Biologi (Edisi ke-9). Berge, Susan; Emas, Brandy; Triglia, Logan (ed.). San Francisco: Pearson Benjamin Cummings. ISBN 978-0-321-55823-7