K. Khodijah, S. Sriwidodo, and Rahman Roestan, “VALIDASI METODE ANALISIS PENETAPAN KADAR PARACETAMOL, CHLORPHENAMINE MALEATE, DEXTROMETHORPHAN HBR, DAN PHENYLEPHRINE HCL DALAM SEDIAAN KAPLET SECARA HPLC”, nutricia, vol. 2, no. 4, pp. 18–28, Mar. 2024.