(1)
Adriani, F.; BACHRI, M. .; Sinaga, S. M. DEVELOPMENT AND VALIDATION OF DOUBLE DIVISOR RATIO SPECTRA DERIVATIVE SPECTROPHOTOMETRY METHOD FOR TERNARY MIXTURE OF GUAIFENESIN, DEXTROMETHORPHAN HBR, AND DIPHENHYDRAMINE HCL IN TABLET DOSAGE FORM. Asian J Pharm Clin Res 2018, 11, 1-3.