Building a Product Category System for a Shopping App with Inheritance in Java. ITEJ (Information Technology Engineering Journals), [S. l.], v. 9, n. 2, p. 100–109, 2024. DOI: 10.24235/itej.v9i2.155. Disponível em: https://itej.uinssc.ac.id/index.php/itej/article/view/155. Acesso em: 12 jun. 2026.