Langley, Leroy Lester; Cheraskin, Emmanuel (1958). The Physiology of Man. McGraw-Hill. Archived from the original on 1 August 2020. Retrieved 3 December 2019.
Steven Dowshen, MD (September 2011). "Stool Test: Bacteria Culture". Kidshealth. Archived from the original on 19 February 2012. Retrieved 11 February 2012.
Langley, Leroy Lester; Cheraskin, Emmanuel (1958). The Physiology of Man. McGraw-Hill. Archived from the original on 1 August 2020. Retrieved 3 December 2019.
Steven Dowshen, MD (September 2011). "Stool Test: Bacteria Culture". Kidshealth. Archived from the original on 19 February 2012. Retrieved 11 February 2012.