Yusrawati, Y., M. Idaman, and N. Lipoeto. “Third Trimester Maternal 1,25-Dihydroxyvitamin D and Neonatal Birth Weight”. Paediatrica Indonesiana, Vol. 57, no. 2, Apr. 2017, pp. 67-9, doi:10.14238/pi57.2.2017.67-9.