Udayani, N.P.M.Y., Lestari, N.P.Y.S., Fitriyani, N.P.D. and Manutami, N.P.T. 2026. Effectiveness of Theory of Planned Behavior-Based Health Education on Postpartum Depression Prevention Behaviors among Postpartum Mothers. Ahmar Metastasis Health Journal. 6, 2 (Sep. 2026), 190–203. DOI:https://doi.org/10.53770/amhj.v6i2.793.