Pandu Dwipatmasari and Irfan Hamdani (2026) “The Relationship Between Backpack Use and Low Back Pain Complaints in Grade VIII Students of Muhammadiyah 1 Middle School, Medan”, Educare: Journal Educational and Multimedia , 4(02), pp. 132–140. Available at: https://seaninstitute.or.id/bersinar/index.php/ducare/article/view/274 (Accessed: 15 September 2026).