Fitriarni, D., Eko Rifkowaty, E. ., Martanto, M., Verawaty , N. ., & Purwanto, D. . (2022). Phenol Levels And Antidiabetic Functional Drinks Combination Of Black Tea And Singkil (Premna serrafolia). Jurnal Penelitian Pertanian Terapan, 22(3), 267-278. https://doi.org/10.25181/jppt.v22i3.2218