RAHAYU, S. Development of 21st Century Skills through Project-Based Learning at Al-Azhar 15 Islamic Junior High School Cilacap. Proceedings Series on Social Sciences & Humanities, [S. l.], v. 19, p. 200–205, 2024. DOI: 10.30595/pssh.v19i.1353. Disponível em: https://conferenceproceedings.ump.ac.id/pssh/article/view/1353. Acesso em: 16 aug. 2025.