Q. Geissmann, “A powerful and user-friendly program to count cell colonies,” Count your colonies. [Online]. Available: http://opencfu.sourceforge.net/. [Accessed: 23-Apr-2017].
 “Stuart® SC6 Colony Counter,” Carolina Biological Supply: World-Class Support for Science & Math. [Online]. Available: http://www.carolina.com/colony-counters/colony-counter/FAM_703445.pr. [Accessed: 23-Apr-2017].
 A. Dance, “Down For The Count,” The Scientist, 01-May-2013.
 “Scan® 500,” INTERSCIENCE for microbiology l Automatic Scan colony counter l Automatic colony counting. [Online]. Available: http://www.interscience.com/en/products/automatic-colony-counters/automatic-colony-counting-scan. [Accessed: 23-Apr-2017].
 J. Marlin, J. Starr, and M. B. Annheuser, Mar-2017.
 S. Aryal, “Sabouraud Dextrose Agar (SDA) – Composition, Principle, Uses, Preparation and Colony Morphology,” Online Microbiology Notes, 05-Oct-2015. [Online]. Available: http://www.microbiologyinfo.com/sabouraud-dextrose-agar-sda-composition-principle-uses-preparation-and-colony-morphology/.
 Jiatyan, “Cultivation Media for Bacteria,” Cultivation Media for Bacteria. [Online]. Available: http://learn.chm.msu.edu/vibl/content/differential/. [Accessed: 23-Apr-2017].
 S. D. Brugger, C. Baumberger, M. Jost, W. Jenni, U. Brugger, and K. Mühlemann, “Automated Counting of Bacterial Colony Forming Units on Agar Plates,” PLoS ONE, vol. 7, no. 3, 2012.
 G. Kaur, “A Novel Methodology for Automatic Bacterial Colony Counter,” International Journal of Computer Applications, vol. 49, no. 15, 2012.
 P. Choudhry, “High-Throughput Method for Automated Colony and Cell Counting by Digital Image Analysis Based on Edge Detection,” PloS ONE, vol. 11, no. 2, 2016.
 E. Denimal, “Reliable Detection and Smart Deletion of Malassez Counting Chamber Grid in Microscopic White Light Images for Microbiological Applications,” Microscopy and Microanalysis, vol. 21, no. 4, pp. 886–892, Aug. 2015.
 P. V. C. Hough, “Method and Means for Recognizing Complex Patterns,” 18-Dec-1962.
 “Imfindcircles,” Find circles using circular Hough transform – MATLAB imfindcircles. [Online]. Available: https://www.mathworks.com/help/images/ref/imfindcircles.html. [Accessed: 23-Apr-2017].