MANURUNG, Rina Sara Jantri; SINAMBELA, Masdiana. Pengembangan Lembar Kerja Peserta Didik Berbasis Problem Based Learning pada Materi Sistem Pertahanan Tubuh di Kelas XI SMA Negeri 4 Medan. Continuous Education: Journal of Science and Research, [S. l.], v. 6, n. 2, p. 407–424, 2025. DOI: 10.51178/ce.v6i2.2738. Disponível em: https://pusdikra-publishing.com/index.php/josr/article/view/2738. Acesso em: 8 sep. 2025.