SobariahI., SuhandiA., & SopandiW. (2020). Conceptual Changes of Fifth Graders towards Water Properties Concept in Mixed Materials through The Implementation of Predict-Observe-Explain Strategy Assisted by Science Kits. International Conference on Elementary Education, 2(1), 866-878. Retrieved from http://proceedings.upi.edu/index.php/icee/article/view/698