Imrana, Ibrahim, Salisu Aminu, Umar Bilal, and MujitafaBello Sada. 2021. “DETERMINATION OF TRACE ELEMENTS IN SOME BRANDS OF GREEN TEA USING WET DIGESTION, INFUSION AND DRY ASHING METHODS”. FUDMA JOURNAL OF SCIENCES 4 (4), 520 -25. https://doi.org/10.33003/fjs-2020-0404-512.