SudrajatCucu Jajat, and Mubiar Agustin. 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). Bandung, Indonesia, 698-709. http://proceedings2.upi.edu/index.php/icee/article/view/678.