R. P. Batubara, E. A. M. Zuhud, R. Hermawan, and R. Tumanggor, “Use Value of Plant Spesies For Steam Bath Oukup, Karo”, Medkon, vol. 22, no. 1, pp. 79–86, Sep. 2017, doi: 10.29244/medkon.22.1.79-86.