Adjie, JM Seno, and AA Rai D Maharani. “Relationship Between Physical Activity of Pregnant Women in the Third Trimester of Pregnancy With Preterm Birth Using Kaiser Physical Activity Survey (KPAS) Questionnaire: Hubungan Antara Aktivitas Fisik Perempuan Hamil Pada Trimester Ketiga Kehamilan Dengan Persalinan Prematur Menggunakan Kuesioner Kaiser Physical Activity Survey (KPAS)”. Indonesian Journal of Obstetrics and Gynecology 6, no. 4 (October 10, 2018): 203–208. Accessed March 9, 2026. https://www.inajog.com/index.php/journal/article/view/841.