Saputra H, Yusuf S, Azis N, Syarifuddin A, Saing B. Development of children of 2 – 3 years old from pre-prosperous family and prosperous family stage II. PI [Internet]. 30Apr.2001 [cited 23Nov.2024];41(3-4):100-5. Available from: https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/1246