Titiek Berniyanti and Annisa Fardhani and Retno Palupi and Taufan Bramantoro and Doaa Ramadhan and Aulia Ramadhani and Sarah Fitria Romadhoni (2019) Effect of Blood Iron Level on Prevalence of Recurrent Aphthous Stomatitis (RAS) in Traffic Police Officers. Indian Journal of Public Health Research & Development, 10 (8). pp. 638-642. ISSN 0976-0245

Annisa Fardhani (2015) Hubungan Kadar Zat Besi Dalam Darah Dengan Recurrent Aphthous Stomatitis (Ras) Pada Polantas Di Polrestabes Surabaya. Skripsi thesis, UNIVERSITAS AIRLANGGA.