ZHANG, Heming; LI, Hongli. Design and Implementation of a Bill Printing System Based on the PyQt Framework and Artificial Intelligence. International Journal of Advance in Applied Science Research, [S. l.], v. 5, n. 6, p. 34–40, 2026. Disponível em: https://www.h-tsp.com/index.php/ijaasr/article/view/315. Acesso em: 4 aug. 2026.