Syaifullah, Syaifullah, Marisa Marisa, and Herlinawati Herlinawati. “A Study on Speaking Skill of Traffic Police in Pekanbaru”. ELT-Lectura 10, no. 2 (July 24, 2023): 83-95. Accessed July 5, 2024. https://pustaka-psm.unilak.ac.id/index.php/ELT-Lectura/article/view/12761.