Widjiastuti, I., Suardita, K., & Saraswati, W. (2014). The expressions of NF-kb and TGFb-1 on odontoblast-like cells of human dental pulp injected with propolis extracts. Dental Journal, 47(1), 13–18. https://doi.org/10.20473/j.djmkg.v47.i1.p13-18