Syahmani, Suyono, and Z. A. I. Supardi. “Effectiveness of I-SMART Learning Model Using Chemistry Problems Solving in Senior High School to Improve Metacognitive Skills and Students’ Conceptual Understanding”. Pedagogika / Pedagogy, vol. 138, no. 2, Aug. 2020, pp. 37-60, doi:10.15823/p.2020.138.3.