Panaligan, J.M. et al. 2020. Utilization of Bladeless Air Purifier as Primary Solution for Purification of Polluted Classrooms of Grade 12 Accountancy, Business, and Management Strand Students in Bestlink College of the Philippines. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research. 2, 1 (Apr. 2020).