Niami, Nailatun, et al. “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”. Urecol Journal. Part B: Economics and Business, vol. 5, no. 2, Dec. 2025, https://e-journal.urecol.org/index.php/ujeb/article/view/281.