ULFA, Maria. Improving English Speaking Skills in Asking for and Giving an Opinion Using Picture Series Media Through Genre-Based Approach (Gba) in Class X.4 Majoring Hospitality at Smk Negeri 6 Semarang in Academic Years 2023-2024. Prosiding Seminar Nasional Pendidikan Profesi Guru, [S. l.], v. 1, n. 2, p. 447–456, 2023. Disponível em: https://conference.upgris.ac.id/index.php/psnppg/article/view/5138. Acesso em: 5 dec. 2025.