Edmund, N., Gunawan, U. and Notario, D. (2025) “A Validated RP-HPLC-PDA with Buffer-Free Gradient Elution for Simultaneous Plasma Analysis of Trimethoprim and Sulfamethoxazole”, JFIOnline | Print ISSN 1412-1107 | e-ISSN 2355-696X, 17(2), pp. 186–199. doi: 10.35617/jfionline.v17i2.498.