Monoarfa, Yustiyanty, et al. “The Effect of Selenium and Multiple Micronutrient Administration During Periconceptional Periodon Selenium Status, Malondialdehyde (MDA), sFlt1, and PIGF to Prevent Preeclampsia at the Molecular Level”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 31, no. 1, Jan. 2017, pp. 260-8, https://gssrr.org/JournalOfBasicAndApplied/article/view/6794.