Yulviana, Rina, and Intan Widya Sari. 2021. “The Effectiveness of Pregnant Exercise Against Anxiety Levels in Promigravida Pregnant Women at Pratama Deliana Clinic Pekanbaru”. Journal of Midwifery and Nursing 3 (1):16-19. https://iocscience.org/ejournal/index.php/JMN/article/view/1147.