Lukitaningsih, Mhd Yusuf Nasution, and Prihatin Ningsih Sagala. 2021. “Parental Assistance Model in Online Learning for Children Pandemic Period in Medan City”. International Journal of Educational Research &Amp; Social Sciences 2 (6):1411-17. https://doi.org/10.51601/ijersc.v2i6.201.