R, D., and J. Koilpillai. “QUANTITATIVE ANALYSIS OF BIOACTIVE COMPOUNDS FROM TAGETES ERECTA (LINN.)”. Asian Journal of Pharmaceutical and Clinical Research, vol. 8, no. 6, Nov. 2015, pp. 185-7, https://mail.innovareacademics.in/journals/index.php/ajpcr/article/view/8148.