HAMIDAH SARI BATUBARA; WAHYUNI, R. S.; ANDRIANI, A. The Relationship Between Smartphone Usage and Student Achievement at SMP 21 Pekanbaru. International Journal of Public Health Excellence (IJPHE), [S. l.], v. 4, n. 1, p. 064–069, 2024. DOI: 10.55299/ijphe.v4i1.917. Disponível em: https://ejournal.ipinternasional.com/index.php/ijphe/article/view/917. Acesso em: 1 sep. 2024.