Kido, Kumiko, Mari Matsuo, Yuko Uemura, Atsuko Shiota, and Satoshi Tada. 2022. “Change in Sleep and Depressive Symptoms in The Perinatal Periode: A Case Series of Four Japanese Mothers”. Women, Midwives and Midwifery 2 (2). Jakarta, Indonesia:35-45. https://wmmjournal.org/index.php/wmm/article/view/63.