NATARAJAN SISUBALAN, AMZAD BASHA KOLAR, and MOHAMED HUSSAIN GHOUSE BASHA, “ASSESSMENT OF ALIZARIN, PURPURIN AND GENETIC FIDELITY OF RUBIA CORDIFOLIA L. FROM EASTERN GHATS OF TAMIL NADU, INDIA”, ijpbs, vol. 6, no. 1, pp. 1112–1122, Mar. 2015.