THE EFFECT OF BILIMBI (BELIMBING WULUH) EXTRACT (Averrhoa bilimbi L) AGAINST DENTAL REMINERALIZATION AND ENAMEL MICROSTRUCTURE (IN VITRO RESEARCH): PENGARUH EKSTRAK BUAH BELIMBING WULUH (Averrhoa bilimbi L) TERHADAP REMINERALISASI GIGI DAN MIKROSTRUKTUR EMAIL (PENELITIAN IN VITRO) - Abidin, Trimurni (TALENTA, 2017)