Nurtiwi, Olvira Esa, et al. “Aktivitas Antioksidan Fraksi N-Butanol Tanaman Libo (Ficus Variegate Blume)”. Proceeding of Mulawarman Pharmaceuticals Conferences, vol. 3, no. 2, Apr. 2016, pp. 318-21, doi:10.25026/mpc.v3i2.127.