SABRY KH. MOHAMED; YOUSRI M. HUSSEIN; BASSEM M. RAAFAT. MICRO-DETERMINATION OF TADALAFIL IN PHARMACEUTICAL FORMULATIONS AND URINE SAMPLES OF DIABETIC PATIENTS TYPE-II IN TAIF AREA, SAUDIA ARABIA USING ATOMIC ABSORPTION AND ATOMIC EMISSION SPECTROMETRY. ijpbs 2014, 5, 285-291.