Maheshika Peries, C., S. Navarthne, J. Wijesinghe, A. Priyashantha Henagamage, and R. Coorey. “Effect of Different Drying Methods on Antioxidant Activity and Availability of Phytochemicals in Leaves of Costus Speciosus, Coccinia Grandis and Gymnema Sylvestre”. Asian Journal of Engineering and Applied Technology, vol. 11, no. 1, Apr. 2022, pp. 29-35, doi:10.51983/ajeat-2022.11.1.3310.