Marlina, Marlina, Samsul Hadi, and Abdul Rahim. “Analysis High Order Level Thinking Skills of High School Students in Chemistry Learning”. Journal of Educational Chemistry (JEC) 5, no. 1 (September 11, 2023): 55–60. Accessed June 29, 2025. https://journal.walisongo.ac.id/index.php/jec/article/view/15182.