STEM-IoT Integration in Paper Bridge Projects: Development of a Learning Tool for Teaching Ratio and Proportion (Karina Surya Eka Kusuma, Nova Enu Kemalasari, Aqne Fadilla Ramadhany, Ma’nawi Sukma Dewi, & Yurizka Melia Sari, Trans.). (2026). Jurnal Padamu Negeri, 3(4), 06-18. https://doi.org/10.69714/frkkar67