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Siregar, C.; Prabaningdyah, N. K.; Choiri, S.; Riyanto, S.; Rohman, A. Optimization of HPLC Using Central Composite Design for Determination of Curcumin and Demethoxycurcumin in Tablet Dosage Form. Dhaka Univ. J. Pharm. Sci 2018, 16, 137-145.