Widjiastuti, Ira, Dani Rudyanto, Tamara Yuanita, Taufan Bramantoro, and Wawan Aries Widodo. 2018. “Cleaning Efficacy of Root Canal Irrigation With Positive and Negative Pressure System”. Iranian Endodontic Journal 13 (3):398-402. https://doi.org/10.22037/iej.v13i3.20875.