Schoenwolf, Gary C.; Bleyl, Steven B.; Brauer, Philip R.; Francis-West, Philippa H. (2014-12-01). Larsen's Human Embryology. Elsevier Health Sciences. p. 372. ISBN9781455727919.
doi.org
Lee, JM; Kim, NK (April 2018). "Essential Anatomy of the Anorectum for Colorectal Surgeons Focused on the Gross Anatomy and Histologic Findings". Annals of coloproctology. 34 (2): 59–71. doi:10.3393/ac.2017.12.15. PMID29742860.
nih.gov
pubmed.ncbi.nlm.nih.gov
Lee, JM; Kim, NK (April 2018). "Essential Anatomy of the Anorectum for Colorectal Surgeons Focused on the Gross Anatomy and Histologic Findings". Annals of coloproctology. 34 (2): 59–71. doi:10.3393/ac.2017.12.15. PMID29742860.