Kelouthu , Chennarao, et al. “A New RP-HPLC Method for Simultaneous Estimation of Ribociclib and Letrozole in Its Pure and Tablet Dosage Form As Per ICH Guidelines”. International Journal of Medicine and Pharmaceutical Research, vol. 13, no. 2, Oct. 2025, pp. 145-51, https://doi.org/10.30904/j.ijmpr.2025.4895.