Rajkumar, S., V. S, E. Wilson, S. D. M S, V. V, S. K. K N, A. D, S. L, and K. K. “Concept of Standard Raw Drug Substitution in Traditional Siddha Medicine - A Review”. International Journal of Ayurvedic Medicine, vol. 12, no. 3, Sept. 2021, pp. 448-55, doi:10.47552/ijam.v12i3.2080.