Nur, Sudirman, and Jaslin Ikhsan. “Implementation of STEM Integrated Problem Based Learning Model to Improve Problem Solving Skills and Learning Motivation of Grade X Vocational High School Students on the Material of Substances and Their Changes”. Jurnal Penelitian Pendidikan IPA, vol. 10, no. 11, Nov. 2024, pp. 8882-91, doi:10.29303/jppipa.v10i11.9121.