Tahir Umar, F. T. U., & Abubakar Lawal. (2025). REVIEW OF RECENT SAMPLE PREPARATION METHODS FOR THE ANALYSIS OF AZO DYES IN FOODS AND DRINKS: A COMPARISON OF SOLID-PHASE EXTRACTION AND QuEChERS. FUDMA JOURNAL OF SCIENCES, 9(12), 81-90. https://doi.org/10.33003/fjs-2025-0912-4106