Army, Tamara, Ainil Fithri Pulungan, Ridwanto Ridwanto, and Anny Sartika Daulay. “Analysis of Sodium Benzoate Levels in Spicy Soy Sauce on the Market Using Thin Layer Chromatography (TLC) and Spectrophotometry Uv-Vis Methods”. Journal of Pharmaceutical and Sciences 6, no. 4 (November 29, 2023): 1862–1869. Accessed August 23, 2025. https://journal-jps.com/new/index.php/jps/article/view/266.