Development and validation of simple simultaneous analysis for amlodipine and glibenclamide by nonderivatization high-performance liquid chromatography-fluorescence oleh Febrina Amelia Saputri, Anisahtul Alawiyah, Ayu Brilliany Firsty, Sandra Megantara, Arif Satria Wira Kusuma, Taofik Rusdiana, Aliya Nur Hasanah, Mutakin Mutakin, Ingrid S Surono, Rizky Abdulah