WULANDARI, Fitri. INCREASING STUDENT LEARNING CONCENTRATION IN WRITING USING PROJECT BASED LEARNING. Jurnal Smart, [S. l.], v. 5, n. 1, p. 37–44, 2019. DOI: 10.52657/js.v5i1.813. Disponível em: https://ejournal.umpri.ac.id/index.php/smart/article/view/813. Acesso em: 5 nov. 2026.