“CORRELATION BETWEEN CALCIUM BENTONITE CONCENTRATION AND PARAFFIN WAX TO THE HARDNESS OF CARVING WAX: HUBUNGAN ANTARA KONSENTRASI KALSIUM BENTONIT DENGAN PARAFIN MALAM TERHADAP KEKERASAN MODEL MALAM”, Dentika Dental J., vol. 14, no. 1, pp. 20–23, Jul. 2009, doi: 10.32734/dentika.v14i1.1969.