DAVID BERTHONI MANALU; RUDIARMAN PURBA. PROBLEM-BASED LEARNING APPLICATION ON ENGLISH ESSAY WRITING CLASS. Pande Nami Jurnal (PNJ), [S. l.], v. 2, n. 3, p. 11–17, 2024. Disponível em: https://jurnal.migascentral.com/index.php/pnj/article/view/242. Acesso em: 21 jul. 2026.