TARIGAN RE, MUCHLISYAM, SINAGA SM, ALFIAN Z. DEVELOPMENT AND VALIDATION OF DOUBLE DIVISOR RATIO SPECTRA DERIVATIVE SPECTROPHOTOMETRY METHOD FOR TERNARY MIXTURE OF DEXTROMETHORPHAN HYDROBROMIDE, DOXYLAMINE SUCCINATE AND PSEUDOEPHEDRINE HYDROCHLORIDE IN TABLET DOSAGE FORM. Int J App Pharm [Internet]. 2020 Nov. 7 [cited 2024 Apr. 20];12(6):249-52. Available from: https://journals.innovareacademics.in/index.php/ijap/article/view/39037