oktavia, zaini, and Saiful Ridlo. “Critical Thinking Skills Reviewed from Communication Skills of the Primary School Students in STEM-Based Project-Based Learning Model”. Journal of Primary Education 9, no. 3 (May 31, 2020): 311-320. Accessed July 3, 2024. https://journal.unnes.ac.id/sju/jpe/article/view/27573.