[1] G. D. Christian, Analytical Chemistry (5 th Ed.). New York ,
Wiley, 1994, 812 s.
[2]D. Kealay, P.J: Haines, Analytical Chemistry. Oxford, BIOS Scientific Publishers, 2002, 342 s.
[3]J. Kenkel, Analytical Chemistry for Technicians (4th Ed.). Boca Raton, CRC Press, 2014, 507 s.