Yulianti, N. T., & Arslan, M. . (2026). THE EFFECTIVENESS OF THE COMBINATION OF BIRTH BALL EXERCISE AND HUSBAND’S SUPPORT ON THE PROGRESS OF CHILDBIRTH IN PHASE I AND THE LEVEL OF MATERNAL ANXIETY IN BALIKPAPAN. Journal of World Future Medicine, Health and Nursing, 4(3), 345–357. https://doi.org/10.70177/health.v4i3.3746