F. Armin, B. Revira, and A. Z. Adnan, “Development and Validation Of Thin Layer Chromatograpy-Densitometry Method for Determinationa and Quantification of Sinthetic Red Coloring Agent in Sauce Sambel Sachet”, J Sains Farm Klin, vol. 2, no. 1, pp. 60–65, Dec. 2015.