Umamity S, Windari AP. The Effect of Health Education on Pregnant Women’s Knowledge About Perineal Massage in Allang Village, West Leihitu District. UNIMUS Web Conf. [Internet]. 2026 Jan. 31 [cited 2026 Apr. 6];1:1-7. Available from: http://103.97.100.158/index.php/UWC/article/view/1072