Nugrahnastiti, Nuzulul, and Agus Kamaludin. “Development of a Higher-Order Thinking Skills (HOTS) Test Instrument on Electrochemical Material for High School Students”. Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran 10, no. 2 (June 22, 2024): 451–466. Accessed August 16, 2025. https://e-journal3.undikma.ac.id/index.php/jurnalkependidikan/article/view/11370.