Ari, Widayanti dan Rahma, Elfiyani dan Thiara Eka, Febriyani Effects of Sonicator Usage Time on Entrapment Efficiency of Liposome Magnesium Ascorbyl Phosphate Made by Thin Layer Hydration Method. Effects of Sonicator Usage Time on Entrapment Efficiency of Liposome Magnesium Ascorbyl Phosphate Made by Thin Layer Hydration Method.. ISSN 0975-8585