Rhamadhani, Fitri, et al. “Aktivitas Antibakteri Ekstrak Daun Jahe Balikpapan (Etlingera Balikpapanensis)”. Proceeding of Mulawarman Pharmaceuticals Conferences, vol. 4, no. 1, Nov. 2016, pp. 118-24, doi:10.25026/mpc.v4i1.170.