Ningsih, Dewi Andariya, and Miftakhur Rohmah. “Developing an Educational Package through Handbook of How to Express Breast Milk for Working Mother at Sumberejo Banyuputih Village in Situbondo”. STRADA : Jurnal Ilmiah Kesehatan, vol. 10, no. 1, May 2021, pp. 1297-05, doi:10.30994/sjik.v10i1.613.