Vadivel, E., and S. D. Chipkar. “ECO-FRIENDLY NATURAL ACID-BASE INDICATOR PROPERTIES OF FOUR FLOWERING PLANTS FROM WESTERN GHATS”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 8, no. 6, June 2016, pp. 250-2, https://journals.innovareacademics.in/index.php/ijpps/article/view/11555.