HUBUNGAN KEBIASAAN MEROKOK DENGAN STATUS PERIODONTAL TUKANG BECAK DI SEKITAR KAMPUS USU MEDAN: RELATIONSHIP BETWEEN SMOKING AND PERIODONTAL STATUS OF PEDICAP RIDER AROUND USU CAMPUS MEDAN. Dentika Dental J. [Internet]. 2012 Dec. 6 [cited 2026 Feb. 5];17(2):128-33. Available from: https://idjpcr.usu.ac.id/dentika/article/view/1757