Magdalena, M., & Melly, M. (2019). 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, 8(2), 35-43. https://doi.org/10.36929/jpk.v8i2.163