Kurniaji, Inna, and Zulfadli Zulfadli. “Thirty Week Multigravid Pregnant Woman With Imminent Preterm and Cervical Shortening Single Life Fetus Presentation of Head : A Case Report”. Medical Profession Journal of Lampung 14, no. 7 (October 29, 2024): 1269-1273. Accessed December 21, 2024. http://journalofmedula.com/index.php/medula/article/view/1193.