DE KEIZER, Donny Perdana. Event Organizer sebagai Peluang Wirausaha. Humaniora, [S. l.], v. 2, n. 1, p. 855–859, 2011. DOI: 10.21512/humaniora.v2i1.3104. Disponível em: https://journal.binus.ac.id/index.php/Humaniora/article/view/3104. Acesso em: 7 jul. 2025.