RAHAYU, Try; SIRAIT, Albert Pauli; LUBIS, Wildansyah; MAILANI, Elvi; GANDAMANA, Apiek. DEVELOPMENT OF PBL-BASED INTERACTIVE E-MODULES TO IMPROVE CRITICAL THINKING SKILLS OF GRADE 4 STUDENTS IN MATHEMATICS AT SDN 060866 MEDAN. Algebra : Jurnal Pendidikan, Sosial dan Sains, [S. l.], v. 6, n. 1, p. 269–276, 2026. DOI: 10.58432/z9jz5248. Disponível em: https://algebra.yana.or.id/index.php/ejournal/article/view/221. Acesso em: 21 apr. 2026.