[1] Cranfield, M.R., Shaw, M., Beall, F. and Skjoldager, M. (1990) A Review and Update of Avian Malaria in the African Penguin (Speniscus demersus). American Association of Zoo Veterinarians, 243-248.
[2] Gould, W.J. (1992) Liver Disease in Psittacines. In: Miller, R.E., Ed., Current Veterinary Therapy XI Small Animal Practice. W.B. Saunders, Philadelphia, 1145-1150.
[3] Hochleithner, M. (2002) Biochemistries. In: Ritchie, B.W, Harrison G.J. and Harrison, L., Eds., Avian Medicine: Principles and Application, Wingers Publishing Inc., Lake Worth, 223-245.
[4] Lumeij, J.T. (1994) Avian Clinical Enzymology. Seminars in Avian & Exotic Pet Medicine, 3, 14-24.
[5] Hoefer, H.L. (1997) Diseases of the Gastrointestinal Tract. In: Altman, R.B., Clubb, S.L. and Dorrestein, G.M., Avian Medicine and Surgery, Saunders, Philadelphia, 419-453.
[6] Hoefer, H.L. (1994) Bile Acid Testing in Psittacine Birds. In: Fudge, A.M., Ed., Seminars in Avian & Exotic Pet Medicine, 2, 14-24.
[7] Mary, I.P. (1994) Nutrient Requirements of Poultry. 9th Revised Edition, National Academies Press, Washington DC.
[8] Dierenfeld, E.S. (1995) Nutrition Husbandry Guidelines for the Bali Mynah (Leucopsar rothschildi) Species Survival Plan. American Association of Zoos and Aquariums.