Adethia, Kismi Asih, et al. “The Influence of Peer Education on mother’s Self Efficacy in Providing Nutrition With the Nutritional Status of Toddlers in the Sei Musam Langkat ”. Science Midwifery, vol. 11, no. 4, Oct. 2023, pp. 692-8, doi:10.35335/midwifery.v11i4.1360.