Sulistyani, H., Fujita, M., & Nakazawa, F. (2016). EFFECT OF ROSELLE CALYX EXTRACT ON GINGIPAIN ACTIVITY, PRODUCTION OF INFLAMMATORY CYTOKINES, AND ORAL BACTERIAL MORPHOLOGY. Journal of Microbiology, Biotechnology and Food Sciences, 6(3), 961–965. https://doi.org/10.15414/jmbfs.2016/17.6.3.961-965