SUKARSA, Rizkar A.; BUDI, Radiastomo S.; PURWARA, Benny H.; SYAM, Hanom H. Differences of Vitamin D Level in Non-pregnant Reproductive Age Women and First Trimester Pregnant Women: Perbedaan Kadar Vitamin D pada Perempuan Usia Reproduksi Tidak Hamil dan Perempuan Hamil Trimester Pertama. Indonesian Journal of Obstetrics and Gynecology, [S. l.], v. 7, n. 4, p. 271–276, 2019. DOI: 10.32771/inajog.v7i4.998. Disponível em: https://www.inajog.com/index.php/journal/article/view/998. Acesso em: 1 mar. 2026.