Viridula EY, Herlinda S, Wijaya DAS. The Relationship Between the Educational Level of Couples in Premarital Stage and Their Knowledge of Healthy Pregnancy Preparation. JoHMIS [Internet]. 2026 Jan. 28 [cited 2026 Feb. 4];1(2):113-9. Available from: https://johmis.itsk-soepraoen.ac.id/index.php/johmis/article/view/25