zulfikri, Z. and Rahmanita, R. 2018. Debris Index of Children With Brushing Their Teeth 1, 2, And 3 Methods in Elementary School 26 Surau Labuah Agam District. Jurnal Kesehatan Masyarakat Andalas. 12, 1 (Feb. 2018), 49–53. DOI:https://doi.org/10.24893/jkma.v12i1.378.