SOEBAGIO; YOGIARTONO, R. Moh. Surface hardness of composite resins After the contact with siwak stem infusion. International Journal of Psychosocial Rehabilitation, [S. l.], v. 24, n. 9, p. 3603–3610, 2020. DOI: 10.61841/vhtrpr39. Disponível em: https://psychosocial.com/index.php/ijpr/article/view/9123. Acesso em: 21 jan. 2026.