“Relationship of Parent’s Knowledge About Toilet Training With the Ability of 1 - 5 Years Agency in Conducting Toilet Training in the Ibnu Sina Kids, Pekanbaru City”. JPK : Jurnal Proteksi Kesehatan, vol. 8, no. 2, Dec. 2019, pp. 35-43, https://doi.org/10.36929/jpk.v8i2.163.