N. Niami, N. I. Ramadhanti, F. Fachrurrazi, F. R. Ardiyansah, and M. Arifiyanto, “Training on Saving and Recording Money from an Early Age with Creative Paralon Piggy Banks and Financial Literacy for Students at Muhammadiyah Kramatsari Elementary School”, UJEB, vol. 5, no. 2, Dec. 2025.