Lenny Sepriani Br. Silalahi. “The Effect Of Tele Education On Increasing The Self-Efficacy Of Pregnant Women In Medan City”. VitaMedica : Jurnal Rumpun Kesehatan Umum, vol. 2, no. 4, Feb. 2025, pp. 325-31, doi:10.62027/vitamedica.v2i3.305.