F. Zakaria and S. R. Abd Hamid, “FIRSTBORN CHILD READINESS FOR A NEW SIBLING: A CASE STUDY OF BIRTH-ORDER CHALLENGES AND COPING FOR PARENTS”, IJSPS, vol. 16, Nov. 2021, Accessed: Oct. 17, 2026. [Online]. Available: https://ijsps.ism.gov.my/index.php/IJSPS/article/view/173