Development of Inventory and Goods Lending Systems Using QR Code at Universitas Muhammadiyah Kotabumi. ENERGY: JURNAL ILMIAH ILMU-ILMU TEKNIK, [S. l.], v. 16, n. 1, p. 88–105, 2026. DOI: 10.51747/energy.v16i1.1616. Disponível em: https://e-journal.upm.ac.id/index.php/energy/article/view/energy.v16i1.1616. Acesso em: 24 jun. 2026.