S. R. Kim, “The relationship between young children’s attachment to their mothers and teachers respectively and teachers”, Journal of the Korea Academia-Industrial, Vol.17, No.4, pp.215-221, 2016. DOI: http://dx.doi.org/10.5762/KAIS.2016.17.4.215 H, Y. Cho, K. S. Lee, “Effects of Physical Environment, Child Care Curriculum, Teacher's Interaction Quality on Toddler's Play Behavior”, Journal of Educational Studies, Vol.45, No.3, pp.115-136, 2014. DOI: http://dx.doi.org/10.15854/jes.2014.09.45.3.115 S. H. Bae, “The Effect of the Happiness of childcare teacher on teacher`s efficacy and job satisfaction”, Busan Educational Studies , Vol.22, No.0, pp.25-44, 2009. S. Y. Cho, “Child Care Teacher's Job Satisfaction and Burnout”, Korean Journal of Human Ecology , Vol.14, No.1, pp.69-78, 2005. S. H. Jaung, I. G. Kim, “The Effects of Child care Teachers' Positive Psychological Capital and Happiness on Organizational Commitment”, Journal of Education & Culture, Vol.26, No.3, pp.779-800, 2020. DOI: https://doi.org/10.24159/joec.2020.26.3.779