“A New Improved RP-HPLC Method for Assay of Bromelain, Trypsin, Rutoside and Diclofenac in Bulk and Pharmaceutical Formulation”. Asian Journal of Pharmaceutical and Health Sciences, vol. 9, no. 1, Mar. 2019, pp. 2025-31, https://ajphs.com/index.php/ajphs/article/view/172.