Abas, Sirojudin, Mubiar Agustin, Rahman Rahman, Wahyu Sopandi, and Atep Sujana. “Application of Stem in Improving Mastery of Mathematics Concept of Speed Materials at Elementary School Grade (Class) V”. International Conference on Elementary Education 2, no. 1 (March 6, 2020): 1851-1861. Accessed November 7, 2024. http://proceedings.upi.edu/index.php/icee/article/view/815.