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							RAMADHAN, Muhammad; 						DINATA, I Made Krisna.
 Hubungan tingkat pengetahuan tentang backpack safety dengan nyeri punggung pada siswa kelas 5 di Denpasar.
<strong>E-Jurnal Medika Udayana</strong>, [S.l.], v. 7, n. 4, p. 160 - 164, apr. 2018.
ISSN 2303-1395.
Available at: &lt;<a href="https://ojs.unud.ac.id/index.php/eum/article/view/38733" target="_new">https://ojs.unud.ac.id/index.php/eum/article/view/38733</a>&gt;. Date accessed: 07 sep. 2026.