Rahayu, S. (2024) “Development of 21st Century Skills through Project-Based Learning at Al-Azhar 15 Islamic Junior High School Cilacap”, Proceedings Series on Social Sciences & Humanities, 19, pp. 200–205. Available at: https://conferenceproceedings.ump.ac.id/pssh/article/view/1353 (Accessed: 31 December 2025).