Donel S., Inayah, Putri RAD, Hamidy MY, Savira M, Soraya NS. Study of Vitamin D Deficiency on Pregnancy Women in Rupat Utara District Bengkalis Regency Riau Province. Nusantara Sci. Tech. Proc. [Internet]. 2022 Dec. 12 [cited 2025 Jun. 18];:94-6. Available from: https://nstproceeding.com/index.php/nuscientech/article/view/834