Lola Pebrianthy, Nurelilasari Siregar, and Ayusdiningsih. “The Difference of Vitamin D and Calcium Levels in Preeclampsia and Normal Pregnancy ”. Journal of Public Health and Pharmacy 1, no. 1 (February 25, 2021): 14-18. Accessed July 3, 2024. https://jurnal.unismuhpalu.ac.id/index.php/jphp/article/view/3652.