KHASANAH, S. N.; KURYANTI, S. J.; HERMANTO, H.; ADIWIHARDJA, C. IT-Helpdesk System Design With Waterfall Model (Case Study : Agung Podomoro Group): IT-Helpdesk System Design With Waterfall Model (Case Study : Agung Podomoro Group). Jurnal Mantik, [S. l.], v. 4, n. 1, p. 56-60, 2020. Disponível em: https://iocscience.org/ejournal/index.php/mantik/article/view/675. Acesso em: 19 aug. 2026.