Ayu Sugiartini, Ni Ketut, et al. “Effect of Application Massage Stimulation Method Endorphine, Oxytocin and Suggestiveness (SPEOS) on Breast Milk Production in Mothers Post Sectio Caesaria”. Jurnal MID-Z (Midwivery Zigot) Jurnal Ilmiah Kebidanan, vol. 6, no. 2, Nov. 2023, pp. 132-7, doi:10.56013/jurnalmidz.v6i2.2449.