Setyowati, D., Ragil, R. A., & Andriyanti, A. (2026). The Relationship Between Parental Knowledge About Stimulation and Child Development in Playgroup Classes in Bluru Kidul Village, Sidoarjo. KESANS : International Journal of Health and Science, 5(4), 863–872. https://doi.org/10.54543/kesans.v5i4.566