“Determination of Zn (II) in Food Stuffs Using (DADHP) Reagent: A spectrophotometric method for determining zinc concentration in various food stuffs using DADHP reagent”, JASRAE, vol. 16, no. 1, pp. 320–322, Jan. 2019, Accessed: Aug. 03, 2025. [Online]. Available: https://ignited.in/index.php/jasrae/article/view/9498