LESTARI, A. D., Rohman, A. and MARTONO, S. (2019) “CENTRAL COMPOSITE DESIGN APPLIED IN HPLC OPTIMIZATION FOR ANALYSIS OF TARTRAZINE AND AURAMINE O IN POWDER DRINKS”, International Journal of Applied Pharmaceutics, 11(3), pp. 211–215. doi: 10.22159/ijap.2019v11i3.32716.