Halimah et al. 2024. Effectiveness of Secang Wood (Caesalpinia sappan l.) in Inhibiting the Growth of Streptococcus mutans. Tropical Journal of Natural Product Research (TJNPR). 8, 6 (Jun. 2024), 7504–7508. DOI:https://doi.org/10.26538/tjnpr/v8i6.26.