Pengembangan Alat Evaluasi Berbasis Guided Discovery Learning untuk Mengukur Kemampuan Berpikir Kritis Siswa SMA Kelas X: Development of Evaluation Tools Based on Guided Discovery Learning to Measure the Critical Thinking Skill of High School Students in Class X. Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam, v. 8, n. 1, p. 17–22, 30 Jan.2019.