Textbooks:

1. Cappuccino G .James, Sherman Natalie, Microbiology A laboratory manual, seventh edition, Pearson Education

2. Brown E. Alfred, Benson's Microbiological Applications, ninth edition, McGraw Hill Publication

3. V.S. Randhawa ,Practicals and Viva in Medical Microbiology

4. Ronald M. Atlas, James W. Snyder ,Handbook of media for clinical microbiology Page 467

5. Ronald M. Atlas ,Handbook of microbiological media for the examination of food Page 379

Webliography:

1. http://www.atsu.edu/faculty/chamberlain/Website/lab/idlab/urease.htm

2. http://web.clark.edu/tkibota/240/Unknowns/Urea.htm

3. http://www.medschool.lsuhsc.edu/Microbiology/DMIP/dmex12.htm

4. http://www.usi.edu/Science/biology/ceseeley/lab13.html

5. http://www.isolab.com.my/Downloads/Tubed%20Media/Urea%20Broth%20Christensens,%205ml.pdf

6. http://archive.student.bmj.com/back_issues/0298/data/0298ed.htm