Wajpeyi, Sadhana Misar, et al. “Efficacy of Bibhitakavaleha in Management of Kaphaja Kasa With Special Reference to Chronic Bronchitis”. International Journal of Ayurvedic Medicine, vol. 11, no. 2, July 2020, pp. 255-60, doi:10.47552/ijam.v11i2.1458.