The Relationship Between the Use of Maternal and Child Health (MCH) Books and Pregnant Women’s Knowledge of Warning Signs of Pregnancy at the Kedungwuni I Community Health Center in Pekalongan Regency. Sanare [Internet]. 2026 Jun. 20 [cited 2026 Sep. 3];1(2):57-6. Available from: https://sovereignresearch.org/sanare/article/view/290