Students’ Negotiation Text Writing Skills in Phase E at SMK Negeri 6 Padang through the Problem-Based Learning Model: KEMAMPUAN MENULIS TEKS NEGOSIASI SISWA FASE E SMK NEGERI 6 PADANG MELALUI MODEL PROBLEM BASED LEARNING. TOFEDU: The Future of Education Journal, v. 5, n. 3, p. 5734–5740, 26 Oct.2026.