Widodo, W., D. Setijanto, and A. Sosiawan. “Effectiveness of Line Communication Application As a Social Media on Changes in Tooth Brushing Behavior of Junior High School Students in Banjarmasin”. Dental Journal, vol. 49, no. 4, Dec. 2016, pp. 223-8, doi:10.20473/j.djmkg.v49.i4.p223-228.