Parsaoran Damanik D, Bukit N. ANALYZE CRITICAL THINKING SKILLS AND SCIENTIFIC ATTITUDE IN PHYSICS LEARNING USED INQUIRY TRAINING AND DIRECT INSTRUCTION LEARNING MODEL. JPF Unimed [Internet]. 2013 Jun. 1 [cited 2025 Aug. 19];2(1):16-24. Available from: https://jurnal.unimed.ac.id/2012/index.php/jpf/article/view/4333