VIONA DIANSARI; IIN SUNDARI; RINI DEFIKA PUTRI. PENGARUH DURASI PERENDAMAN RESIN AKRILIK DALAM MINUMAN KOPI ACEH ULEE KARENG TERHADAP KEKERASAN PERMUKAAN: EFFECT OF ACRYLIC RESIN’S IMMERSION DURATION COFFEE TO SURFACE HARDNESS. Dentika: Dental Journal, v. 16, n. 2, p. 103-107, 7 Dec. 2011.