Silaban, Adeline, and Mariati P Simanjuntak. “THE EFFECT OF GUIDED INQUIRY LEARNING MODEL TO THE SCIENCE PROCESS SKILLS AND UNDERSTANDING THE CONCEPT OF PHYSICS”. Jurnal Pendidikan Fisika, vol. 7, no. 1, June 2018, pp. 20-24, doi:10.22611/jpf.v7i1.8644.