DARMA MARYONO SIRAIT; DINA M SIAHAAN; DINA ADRIANI SIREGAR. Speak Easy: Essential English For Everyday Life. E-Book Al’Adzkiya, [S. l.], 2025. Disponível em: https://ebook.penerbitaladzkiya.com/index.php/ebook/article/view/47. Acesso em: 24 jan. 2026.