YUPENI, Erna; SUSILAWATI, Susilawati; FUTRA, Dedi. Development of PBL-Based Student Worksheets to Improve Problem-Solving Skills and Collaborative Skills of 11th Grade Students in Reaction Rate Material. AL-ISHLAH: Jurnal Pendidikan, [S. l.], v. 17, n. 1, p. 1424–1439, 2025. DOI: 10.35445/alishlah.v17i1.6234. Disponível em: https://www.journal.staihubbulwathan.id/alishlah/article/view/6234. Acesso em: 3 nov. 2026.