K. NAGAPPAN, S. R. RAJMOHAN, M. ANANDA, A. MAHENDRAN, B. MUTHUKUMAR, and P. P. V., “A COMPREHENSIVE REVIEW OF VARIOUS ANALYTICAL METHOD AVAILABLE FOR THE DETERMINATION OF FOOD COLOURS CONSIDERING DIFFERENT REGULATORY ASPECTS”, Int J App Pharm, vol. 17, no. 6, pp. 1–8, Nov. 2025.