Hoque, Akm Monjurul, and Somaya Buckus. “Incidence and Risk Factors of Perineal Tears of Pregnant Women Delivering at a Midwife Obstetric Unit South Africa ”. Nepal Journal of Obstetrics and Gynaecology, vol. 16, no. 2, Jan. 2022, pp. 60-68, https://nepjol.info./index.php/NJOG/article/view/42102.