S. Rukmawati, P. Astutik, and A. D. Retnoningrum, “Method (Stimulation Endorphin, Oxytosin and Sugestive) to Increase The Production of Breast Milk and Involution of Uters On Post Partum”, sjik, vol. 9, no. 2, pp. 1207–1211, Nov. 2020.