LESTARI, AGATHA, FUDHOLI, ACHMAD, NUGROHO, AKHMAD, AND SETYOWATI, ERNA. " The Effect of Simplex Powder n-Hexane Purification on Asiaticoside Content, Free Radical Scavenging and Total Phenolic Content of Gotu Kola (Centella asiatica (L.) Urban) Ethanolic Extract" JURNAL ILMU KEFARMASIAN INDONESIA [Online], Volume 13 Number 1 (30 April 2015)