Dina Aulia Cahyani, Rizqullohil Mubarokah, Cahyantari Dewi Fitriani, Sarah Meirina Sari. Implementation of the Free Nutritious Meal Program to Improve Students’ Learning Concentration in Surabaya City. JD [Internet]. 2026 Aug. 17 [cited 2026 Nov. 12];24(2):193-207. Available from: https://jurnaldialektika.com/index.php/piani/article/view/1143