rendi, muhammad 2025. Optimization of Students’ Understanding of Respiratory System Materials through Canva-Based Interactive Poster Media for Students of SMP Muhammadiyah 1 Surabaya. J-SES : Journal of Science, Education and Studies. 3, 3 (Jan. 2025). DOI:https://doi.org/10.30651/jses.v3i3.24740.