SudrajatC. J., & AgustinM. (2020). School Leadership Strategy and Strategic Planning in Early Childhood Education at the Industrial Revolution 4.0 Era in Character Building: (Case Study at Tri Daya Cimahi Kindergarten). International Conference on Elementary Education, 2(1), 698-709. Retrieved from http://proceedings2.upi.edu/index.php/icee/article/view/678