URL dokumen:
https://prisma.simaster.ugm.ac.id/karya_files/clinical-outcomes-of-orofacial-myofunctional-appliances-in-children-with-lip-incompetence--a-review-dcfcd07e645d245babe887e5e2daa016/5397a590-8a00-11ef-a04f-00505691351c