TAUFIQ, Wahyu. Advanced English Grammar for EFL Learners. Umsida Press, [S. l.], p. 1–111, 2021. DOI: 10.21070/2018/978-602-5914-08-9. Disponível em: https://press.umsida.ac.id/index.php/umsidapress/article/view/978-602-5914-08-9. Acesso em: 21 jun. 2025.