Setiana, Y. N., O. W. K. Handayani, and T. Suminar. “The Effect of Theme-Based Storytelling and Flash Card on Nutritional Knowledge in Early Childhood Education”. Journal of Primary Education, Vol. 8, no. 6, Aug. 2019, pp. 342-50, https://journal.unnes.ac.id/sju/jpe/article/view/33684.