“IMPROVEMENT OF STUDENTS’ SCIENCE PROCESS SKILLS IN SCAFFOLDING-BASED PROBLEM BASED LEARNING ON THE MATERIAL OF TRAVELLING WAVES AND STATIONARY WAVES”. SPEKTRA: Jurnal Kajian Pendidikan Sains 11, no. 1 (May 10, 2025): 49–61. Accessed November 27, 2025. https://ojs.unsiq.ac.id/index.php/spektra/article/view/7812.