URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/evaluation-of-chlorogenic-acids-and-melanoidin-interactions-with-salivary-proteins-and-their-effect-on-tooth-discoloration-dcfcd07e645d245babe887e5e2daa016/560fe642-2994-11f1-ae8a-e4434b0aa6de
