ULLAH KHAN, I., MUBARAK, S., ASHFAQ, M., & YAQOOB, N. (2010). Analytical Properties of Pyridine-2,4,6-tricarboxylic Acid: Determination of Iron in Food Samples and Quantification of Tetracyclines. Asian Journal of Chemistry, 19(7), 5341–5350. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/13139