Manalu, D., S. L. Raja, and M. Silaen. “Analysis of Factors Affecting Breastfeeding Expenditure on Post Sectio Caesarea Mothers at Sidikalang Regional General Hospital Dairi Regency”. Journal La Medihealtico, Vol. 3, no. 1, Mar. 2022, pp. 31-54, doi:10.37899/journallamedihealtico.v3i1.626.