The Influence of Self Instructional Module (SIM) on Self Confidence and Laboratory Skills in Water. HEALTH CARE: JURNAL KESEHATAN, [S. l.], v. 14, n. 2, p. 220–228, 2026. DOI: 10.36763/cgvf7178. Disponível em: https://www.jurnal.payungnegeri.ac.id/index.php/healthcare/article/view/655. Acesso em: 13 jan. 2026.