Punnarak, P.; Mutthajaratkul, S.; Autama, A.; Burana-osot, J.; Kongmuang, S.; Niratisai, S.; Phattanawasin, P. DEVELOPMENT AND VALIDATION OF A FOLIN–CIOCALTEU-BASED SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF BISACODYL IN BULK PHARMACEUTICAL MATERIAL. Thai Bull Pharm Sci 2026, 21, 203-213.