Srinivasu, K. (2010) “Simultaneous RP-HPLC Method for the Estimation of Formoterol Fumarate and Tiotropium Bromide in Pharmaceutical Dosage Forms”, Asian Journal of Chemistry, 22(5), pp. 3943–3948. Available at: https://asianpubs.org/index.php/ajchem/article/view/11633 (Accessed: 30 June 2024).