Wijiyanto, Budy, et al. “Formulation of Tempuyung (Sonchus Arvensis L.) Nano Herbal in Self Nano-Emulsion Drug Delivery System (SNEDDS) Preperation”. Jurnal Sains Farmasi & Klinis, vol. 3, no. 1, Dec. 2016, pp. 50-53, doi:10.29208/jsfk.2016.3.1.99.