Putra Teruna, B. . (2022) “The Overview of Student Knowledge about The Importance of Inverted Pyramid Antenatal Care at Faculty of Medicine, Universitas Sumatera Utara: Gambaran Pengetahuan Mahasiswa tentang Pentingnya Antenatal Care Piramida Terbalik di Fakultas Kedokteran, Universitas Sumatera Utara”, Sumatera Medical Journal, 5(1). doi: 10.32734/sumej.v5i1.7846.