Mew, Nicholas Ah; Pappa, Maria Belen; Gropman, Andrea L. (2015-01-01), Rosenberg, Roger N.; Pascual, Juan M. (penyunting), "Chapter 57 - Urea Cycle Disorders", Rosenberg's Molecular and Genetic Basis of Neurological and Psychiatric Disease (Fifth Edition) (dalam bahasa Inggeris), Boston: Academic Press: 633–647, doi:10.1016/b978-0-12-410529-4.00057-7, ISBN978-0-12-410529-4, dicapai pada 2020-11-10
Atkinson, Daniel (September 20, 1991). "Functional Roles of Urea in Vertebrates". Physiological Zoology (ed. 2). Los Angeles: The University of Chicago Press. 65 (2): 243–267. doi:10.1086/physzool.65.2.30158252. JSTOR30158252.
Shambaugh, G. E. (1977-12-01). "Urea biosynthesis I. The urea cycle and relationships to the citric acid cycle". The American Journal of Clinical Nutrition. 30 (12): 2083–2087. doi:10.1093/ajcn/30.12.2083. ISSN0002-9165. PMID337792.
jstor.org
Atkinson, Daniel (September 20, 1991). "Functional Roles of Urea in Vertebrates". Physiological Zoology (ed. 2). Los Angeles: The University of Chicago Press. 65 (2): 243–267. doi:10.1086/physzool.65.2.30158252. JSTOR30158252.
Shambaugh, G. E. (1977-12-01). "Urea biosynthesis I. The urea cycle and relationships to the citric acid cycle". The American Journal of Clinical Nutrition. 30 (12): 2083–2087. doi:10.1093/ajcn/30.12.2083. ISSN0002-9165. PMID337792.
sciencedirect.com
Mew, Nicholas Ah; Pappa, Maria Belen; Gropman, Andrea L. (2015-01-01), Rosenberg, Roger N.; Pascual, Juan M. (penyunting), "Chapter 57 - Urea Cycle Disorders", Rosenberg's Molecular and Genetic Basis of Neurological and Psychiatric Disease (Fifth Edition) (dalam bahasa Inggeris), Boston: Academic Press: 633–647, doi:10.1016/b978-0-12-410529-4.00057-7, ISBN978-0-12-410529-4, dicapai pada 2020-11-10
Shambaugh, G. E. (1977-12-01). "Urea biosynthesis I. The urea cycle and relationships to the citric acid cycle". The American Journal of Clinical Nutrition. 30 (12): 2083–2087. doi:10.1093/ajcn/30.12.2083. ISSN0002-9165. PMID337792.