Lal, R. K., Singh, S., Gupta, P., Dhawan, S., Sarkar, S., & Verma, R. (2017). Quantification of ursolic acid, correlations and contribution by other traits towards accumulation of ursolic acid in six Ocimum species. Trends in Phytochemical Research, 1(1), 39-46. http://oiccpress.com/tpr/article/view/11683