Liansari, Vevy, Rahmania Sri Untari, and Nuril Lutvi Azizah. “Buku Ajar Basic English for Beginners”. Umsida Press (May 31, 2024): -. Accessed July 3, 2024. https://press.umsida.ac.id/index.php/umsidapress/article/view/978-623-464-094-6.