Fahliza Ismar, E., H. . Putri Anggraini, E. . Girsang, A. . Napiah Nasution, and P. Manalu. “Recommendations For Improving Exclusive Breast Milk For Working Mothers With Health Action Process Approach (Hapa) In Batu Bara District”. International Journal of Health and Pharmaceutical (IJHP), vol. 3, no. 1, Aug. 2022, pp. 45-54, doi:10.51601/ijhp.v3i1.139.