Design and characterization of propolis extract loaded self-nano emulsifying drug delivery system as immunostimulant oleh Annisa Fitria, Suci Hanifah, Lutfi Chabib, Adnan Muhammad Uno, Hodijatul Munawwarah, Nur Atsil, Hendry Aditya Pohara, Dwi Amalia Weuanggi, Yandi Syukri