Yektiningsih E, Firdausi N, Yuliansari P. Correlation between sibling rivalry toward knowledge and development among preschool in kindergarten. Pediomaternal Nurs. J. [Internet]. 2023 Mar. 16 [cited 2024 Nov. 22];9(1):1-5. Available from: https://e-journal.unair.ac.id/PMNJ/article/view/29888