“In Vitro Evaluation of Free Flavonoids in Cassia Fistula Linn. Calli of Different Ages under Varying Concentrations of Plant Growth Regulators (PGRs)”. Indian Journal of Experimental Biology (IJEB) 60, no. 08 (August 1, 2022): 635–639. Accessed May 26, 2026. https://or.niscpr.res.in/index.php/IJEB/article/view/1607.