Optimizing the Sustainable Human Development Index (HDI) through Calligraphy and Qori’ Training for Students at the Muhammadiyah Orphanage in Madiun City. Journal of Contemporary Research and Innovation. 2026;1(1):1-18. Accessed September 10, 2026. https://jurnal.al-fathsiak.org/index.php/jcri/article/view/1