Ningsih, Nunung Ratna, and Agus Kamaludin. “Development of Higher Order Thinking Skills-Based Assessment Instrument on Acid-Base Materials in High School”. Jurnal Penelitian Pendidikan IPA 9, no. 1 (January 31, 2023): 13–19. Accessed November 22, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/1457.