Widiyaningsih, Ragil. “PENGEMBANGAN INSTRUMEN SCIENTIFIC THINKING PADA SISWA SMA”. Jurnal Evaluasi Pendidikan 7, no. 1 (March 30, 2016): 20 - 32. Accessed May 5, 2025. http://103.8.12.212:33180/unj/index.php/jep/article/view/6757.