“Scientific Evaluation of Dhuma Yoga (An Ayurvedic Fumigation Medicine) As Preventive and Curative on Symptoms of Covid-19 Disease”. International Journal of Ayurveda and Pharma Research, vol. 9, no. 6, Aug. 2021, pp. 49-61, https://doi.org/10.47070/ijapr.v9i6.1969.