1. Agarwal RP, Parks RE, Jr (1978) Adenosine deaminase from human erythrocytes In: Hoffee PA, Jones ME (eds) Methods in enzymology Vol.2. Academic Press, New York pp 502–507
2. Alton-Meister (1955) Glutaminase, asparaginase, and -ketoacid-w-amidase In: Jidney P, Colowick SP, Kaplan NO (eds) Methods in enzymology Vol 3. Academic Press, New York pp 380–384
3. Berǵmeyer HU (1965) Methods of Enzymatic analysis., Academic Press, New York, p 837
4. Colowick SP, Kaplan NO (1967) Determination of amide residues by chemical methods In: Hirs CHW (ed) Methods in enzymology Vol 2. Academic Press, New York, pp 63–65
5. Dabrowsk H, Wlasow T (1986) Sublethal effect of ammonia on certain biochemical and haematological indicators in common carpCyprinus carpio. Comp Biochem Physiol 83C: 179–184