Saragih, Srimis Leini. 2021. “Connection Mother’s Knowledge by Giving Tetanus Toxoid Immunization in Rambung Island Plantation Village, Bahorok Health Center in 2021”. Science Midwifery 10 (1, October):425-32. https://www.midwifery.iocspublisher.org/index.php/midwifery/article/view/232.