AHMAD, I. ., and T. . MAJID. “?FETO-MATERNAL MINERAL HOMEOST ASIS-A STUDY IN THREE PREGNANT GROUPS ”. Biological Sciences - PJSIR, vol. 37, no. 5, June 2022, pp. 190-3, https://v2.pjsir.org/index.php/biological-sciences/article/view/2654.