Lubis, W. H., and S. Serelady. “ANGULAR CHEILITIS PATIENTS PROFILES AND DEMOGRAPHIC DATA AT FKG USU DENTAL HOSPITAL IN 2016: DATA DEMOGRAFI DAN PROFIL PENDERITA ANGULAR CHEILITIS DI RUMAH SAKIT GIGI MULUT FKG USU TAHUN 2016”. Dentika: Dental Journal, vol. 19, no. 2, Dec. 2016, pp. 138-41, doi:10.32734/dentika.v19i2.417.