Determination of chemical structure of antioxidant compound benzophenon glycoside from n-butanol extract of the fruits of Mahkota Dewa [Phaleria macrocarpa (Scheff) Boerl.] - Tambunan, Risma Marisi; Faculty of Pharmacy, Pancasila University Jakarta (Faculty of Pharmacy Universitas Gadjah Mada, Yogyakarta, Skip Utara, 55281, Indonesia, 2006)