Khan, M. et al. 2012. Comparative Study Of External And Endoscopic Endonasal Dacryocystorhinostomy For The Treatment Of Chronic Dacryocystitis. Journal of Armed Forces Medical College, Bangladesh. 7, 2 (Apr. 2012), 15–17. DOI:https://doi.org/10.3329/jafmc.v7i2.10389.