The role of attitude, subjective norm, and perceived behavioral control (PBC) of mothers on teaching toothbrushing to preschool children – based on the Theory of Planned Behavior: a cross-sectional study - Setijanto, R. Darmawan; Bramantoro, Taufan; Palupi, Retno; Hanani, Atika (Family Medicine & Primary Care Review, 2019)