लिरगिरिफोरा खुदिया जोथोननि बिबां, गुन आरो दिदोमथि आरो बिमा-फिसा रायज्लायनायफोरनि गेजेरनि खौसेथिखौ नोजोर होदोंमोन जेब्ला खुदिआया 6, 15, 24 आरो 36 दाननि बैसो जायो।
The authors looked at associations between the amount, quality and stability of child care and mother-child interactions when the children were 6, 15, 24 and 36 months old.