Swain, .S. et al. 2018. Validated UV Spectrophotometric Methods for the Estimation of Letrozole in Solid Dosage Forms. International Journal of Pharmaceutical Sciences and Nanotechnology(IJPSN). 11, 3 (May 2018), 4129–4135. DOI:https://doi.org/10.37285/ijpsn.2018.11.3.7.