Nurjasmi, E., & Qonita Rachmah, M.Sc (Nutr&Diet), Q. R. (1). The effect of developed nurani module in preconception class to pregnancy planning quality. Opción, 36, 3024-3041. Recuperado a partir de https://www.produccioncientificaluz.org/index.php/opcion/article/view/32587