Bhati, K.N. and Mashru, R. 2022. Development and Validation of Extractive Spectrophotometric Method for Estimation of Hydroxychloroquine Sulphate by using Smartphone Application. Journal of Drug Delivery and Therapeutics. 12, 3 (May 2022), 49–56. DOI:https://doi.org/10.22270/jddt.v12i3.5460.