Hasanah, Uswatun, Aguswan Khotibul Umam, Khusnul Muslimah, Aufilana Rahmatika, and Amirah Aliyah Marga. 2021. “The Impact of Online Learning on Early Childhood Social Behavior in Tk Pertiwi 2 Sidodadi Pekalongan Lampung Timur”. Journal of Childhood Development 1 (1):46-52. https://doi.org/10.25217/jcd.v1i1.1484.