Nurjasmi, E., and Q. R. Qonita Rachmah, M.Sc (Nutr&Diet). “The Effect of Developed Nurani Module in Preconception Class to Pregnancy Planning Quality”. Opción, Vol. 36, 1, pp. 3024-41, https://produccioncientifica.luz.edu.ve/index.php/opcion/article/view/32587.