Bhagat, Shrikant Anil, and Sumit R. Narwade. “DIY Ventilator Using Arduino With Blood Oxygen Sensing for COVID Pandemic”. International Journal of Research in Engineering, Science and Management, vol. 6, no. 5, June 2023, pp. 141-3, https://journal.ijresm.com/index.php/ijresm/article/view/2714.