Rya Sianturi , Agnes, Chrismis Novalinda Ginting, and Yolanda Eliza Putri Lubis. “The Evaluation of Online Learning Modules to Increase the Capacity of Nurses and Midwives in Promoting Preconception Health in Primary Health Care Services at Tiara Kasih Sejati Hospital Pematangsiantar”. International Journal of Health and Pharmaceutical (IJHP) 3, no. 1 (September 5, 2022): 184–190. Accessed March 10, 2025. https://ijhp.net/index.php/IJHP/article/view/147.