1. Wikipedia, the free encyclopedia Accessed from http://www.wikipedia.com/ parasitic worm /
2. Ochei J, and Kolhatkzr A. Medical Laboratory Science Theory and Practice. New Delhi:Tata McGraw-Hill; 2003, 1st Edition, pp 616–921
3. The Potential Usefulness of the modified Kato-thick smears Thechnique in the Detection of Intestinal Sarcocystosis during field survey;Tungtron A;Mah Univer J,2007
4. Comparison of the thick smear and Kato-Katz techniques for intestinal helminth infections;Santos FLN;Trop Med J,2005
5. Estimating the sensitivity and specificity of Kato-Katz stool examination technique for detection of hookworms, Ascaris lumbricodes and Trichuris trichiura infections in humans in the absence of a ‘gold standard’;Tarafder MR;Intern J Parasitol,2009