“DETERMINATION OF TRACE ELEMENTS IN SOME BRANDS OF GREEN TEA USING WET DIGESTION, INFUSION AND DRY ASHING METHODS”. FUDMA JOURNAL OF SCIENCES 4, no. 4 (June 15, 2021): 520–525. Accessed September 11, 2025. http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/512.