LIANSARI, Vevy; UNTARI, Rahmania Sri; AZIZAH, Nuril Lutvi. Buku Ajar Basic English for Beginners. Umsida Press, [S. l.], p. 1–61, 2024. DOI: 10.21070/2024/978-623-464-094-6. Disponível em: https://press.umsida.ac.id/index.php/umsidapress/article/view/978-623-464-094-6. Acesso em: 27 jun. 2025.