Bedi, P., R. Gupta, R. Gupta, T. Pramanik, and T. Pramanik. “SYNTHESIS AND BIOLOGICAL PROPERTIES OF PHARMACEUTICALLY IMPORTANT XANTHONES AND BENZOXANTHONE ANALOGS: A BRIEF REVIEW”. Asian Journal of Pharmaceutical and Clinical Research, vol. 11, no. 2, Feb. 2018, pp. 12-20, doi:10.22159/ajpcr.2018.v11i2.22426.