“Effects of Maternal Education, Psychosocial Stress, Nutritional Status at Pregnancy, and Family Income, on Birthweight in Nganjuk, East Java”, J Matern Child Health, vol. 2, no. 4, pp. 324–334, Jul. 2017, Accessed: Nov. 15, 2025. [Online]. Available: https://www.thejmch.com/index.php/thejmch/article/view/67