Afiza, E., Y. Takakura, and M. Iida. “Function of Ostia in Airflow Patterns Within Nasal Cavity Model With Maxillary Sinus”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 21, no. 1, June 2016, pp. 41-60, https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/1768.