Ana, K., Sekar Dwi Ardianti, & Fina Fakhriyah. (2026). THE EFFECTIVENESS OF PROBLEM BASED LEARNING ASSISTED BY LANCER MEDIA IN IMPROVING ELEMENTARY SCHOOL STUDENTS’ CONCEPTUAL UNDERSTANDING OF THE HUMAN DIGESTIVE SYSTEM: Efektivitas Model Problem Based Learning Berbantuan Media LANCER dalam Meningkatkan Pemahaman Konsep Materi Sistem Pencernaan Manusia pada Siswa Sekolah Dasar. Santhet (Jurnal Sejarah Pendidikan Dan Humaniora), 10(4), 1693–1702. https://doi.org/10.36526/santhet.v10i4.8942