HARTOYO, Hartoyo. Blended Learning Model for Improving Learning Effectiveness on Techniques of Refrigeration and Air Conditioning Course. JOURNAL OF EDUCATION, [S. l.], v. 4, n. 01, 2014. Disponível em: https://jurnal.uny.ac.id/index.php/joe/article/view/1710. Acesso em: 14 may. 2025.