Suryani E, Fatimah F, Siregar RJ, Harahap ML. Determinants of First-Trimester Antenatal Care Delay in Indonesia’s Disadvantaged Regions: A Cross-Sectional Study of Socioeconomic Barriers in South Tapanuli. Int Jou of PHE [Internet]. 2025 Jul. 23 [cited 2025 Dec. 7];5(1):38-41. Available from: https://ejournal.ipinternasional.com/index.php/ijphe/article/view/1100