V. Srinivas P, G. Manjusha K, and A. Vinukonda, “Determination of Irinotecan enantiomer impurity in Irinotecan Hydrochloride API by using reverse-phase liquid chromatography”, J. Drug Delivery Ther., vol. 13, no. 5, pp. 41–46, May 2023, doi: 10.22270/jddt.v13i5.5815.