Hubungan frekuensi jajan anak dengan kejadian Diare Akut pada anak sekolah dasar di SDN Sukatani 4 dan SDN Sukatani 7 Kelurahan Sukatani, Depok tahun 2012 = Related of frequency's snacking behavior of elementary school with Diarrhea Acute at elementary students in Sukatani 4 elementary high school and Sukatani 7 Elementary high school, Sukatani-Depok in 2012