M. Garg and N. Dwivedi, “Physicochemical and Phytochemical Studies on Sphaeranthus indicus Linn. with HPTLC Fingerprinting”, J. Drug Delivery Ther., vol. 11, no. 2, pp. 100–107, Mar. 2021, doi: 10.22270/jddt.v11i2.4750.