Jurnal Internasional Kebidanan BJOG https://obgyn.onlinelibrary.wiley.com/toc/14710528/2019/126/1 Journal Of Midwifery & Women-s Health https://onlinelibrary.wiley.com/journal/15422011 Journal Of Obstetrics And Gynaecology Research https://obgyn.onlinelibrary.wiley.com/journal/14470756 TOG https://obgyn.onlinelibrary.wiley.com/journal/17444667