Ismed, Friardi, Nadhifa Putri, and Deddi Prima Putra. 2020. “Phytochemical Study of Ethyl Acetate Fraction from Lichen Stereocaulon Massartianum Hue. And Antibacterial Activity Assay With TLC-Bioautography Method”. Jurnal Sains Farmasi & Klinis 7 (2):164-71. https://doi.org/10.25077/jsfk.7.2.164-171.2020.