H. Hardoko, J. K. Sipayung, and Y. Halim, “Antibacterial Activity of Rhizophora mucronata Leaves Extract and Its Application in Chewing Gum against Streptococcus mutans and Streptococcus viridans: doi.org/10.26538/tjnpr/v5i12.4”, TJNPR, vol. 5, no. 12, pp. 2068–2073, Dec. 2021.