URL dokumen:
https://sdm.repository.ugm.ac.id/karya_files/korelasi-kadar-pepsin-pada-kavum-oris-terhadap-gejala-dan-tanda-pasien-refluks-laringofaring-dcfcd07e645d245babe887e5e2daa016/1374a063-e9e3-11eb-a2b7-e4434b0aade8