Srivastava, A. et al. 2011. Microbiological Evaluation of an Active Tubotympanic Type of Chronic Suppurative Otitis Media. Nepalese Journal of ENT Head and Neck Surgery. 1, 2 (May 2011), 14–16. DOI:https://doi.org/10.3126/njenthns.v1i2.4758.