Janbaz, K. H., W. U. Khan, F. Saqib, and M. Khalid. “Pharmacological Basis for the Medicinal Use of Viola Odorata in Diarrhea, Bronchial Asthma and Hypertension”. Bangladesh Journal of Pharmacology, vol. 10, no. 4, Oct. 2015, pp. 836-43, doi:10.3329/bjp.v10i4.23889.