Lasfer, Kahina, Art Pyster, and Brian Sauser. “The Pre-Kindergarten Learning Enterprise (PKLE)”. International Journal of Management & Information Systems (IJMIS) 15, no. 3 (June 16, 2011): 19–30. Accessed July 17, 2024. https://clutejournals.com/index.php/IJMIS/article/view/4639.