Maimunah, S. ., and E. D. . Masita. “The Effect of Double D Method on Post Partum Depression Levels in Post Partum Mothers Phase Letting Go in Wonokromo Village Surabaya”. PROCEEDING SURABAYA INTERNATIONAL HEALTH CONFERENCE 2019, vol. 1, no. 1, June 2020, pp. 263-7, https://conferences.unusa.ac.id/index.php/SIHC19/article/view/531.