}, J., C., W., ., {., E., A.(2018).Scott-Brown’s Otorhinolaryngology Head and Neck Surgery (Eighth Edition, Volume 1).New York:Taylor & Francis Group, LLC.
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}, John, C, Watkinson, , {, Et, Al."Scott-Brown’s Otorhinolaryngology Head and Neck Surgery".Eighth Edition, Volume 1New York:Taylor & Francis Group, LLC,2018.Buku Pelajaran.