Elisa Cahyaningtyas, Fabella, et al. “Relationship Between Breastfeeding Self Efficacy and Exclusive Breastfeeding At Posyandu Working Area Of Pacarkeling Puskesmas Surabaya”. KESANS : International Journal of Health and Science, vol. 1, no. 5, Feb. 2022, pp. 458-66, doi:10.54543/kesans.v1i5.61.