Prihatin, N. S.; Elizar, E.; Rosyta, R.; Jasmiati, J.; Nurmila, N.; Putri, H. W. K. .; Irnawati, I. Assistance in the Use of Maternal and Child Health (MCH) Book on the Behavior of Pregnant Women in Health Services. midwifery 2025, 13, 688-695.