NURTJAHJAK., KELANAT. B., SURYANTOD., PRIYANIN., RIOG., PUTRAD. P., & ARBAIND. (2013). Antimicrobial Activity of Endemic Herbs from Tangkahan Conservation Forest North Sumatera to Bacteria and Yeast. HAYATI Journal of Biosciences, 20(4), 177-181. https://doi.org/10.4308/hjb.20.4.177-181