PENINGKATAN PEMAHAMAN KONSEP DAN MOTIVASI BELAJAR MELALUI MODEL PEMBELAJARAN PROJECT BASED LEARNING PADA MATERI GAMBAR ISOMETRIK INSTALASI AIR BERSIH DENGAN AUTOCAD KELAS XI DPIB SMKN 2 PROBOLINGGO. Integrative Perspectives of Social and Science Journal, [S. l.], v. 3, n. 08 Agustus, p. 24–31, 2026. Disponível em: https://ipssj.com/index.php/ojs/article/view/1850. Acesso em: 21 oct. 2026.