THE DIFFERENCE ON COMPRESSIVE STRENGTH AND DIMENSIONAL CHANGE OF COMMERCIALLY TYPE III GYPSUM COMPARED TO RECYCLE GYPSUM TYPE III TO PRODUCE WORKING CAST: PERBEDAAN KEKUATAN KOMPRESI DAN PERUBAHAN DIMENSI GIPSUM TIPE III KOMERSIAL DENGAN GIPSUM TIPE III DAUR ULANG UNTUK MODEL KERJA GIGI TIRUAN - Wahyuni, Siti (TALENTA, 2016)