FITRI, Yolanda Idha; HENDRIYANI, Yeka; GIATMAN, Muhammad; DARNI, Resmi. Designing PBL-Based Mobile Learning: A Needs Analysis for Enhancing 21st Century Skills in Vocational Schools. AL-ISHLAH: Jurnal Pendidikan, [S. l.], v. 17, n. 2, p. 3612–3622, 2025. DOI: 10.35445/alishlah.v17i2.6699. Disponível em: https://www.alishlah.ahfpublishing.id/alishlah/article/view/6699. Acesso em: 13 oct. 2026.