Yulianti, N. T., and M. . Arslan. “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, vol. 4, no. 3, June 2026, pp. 345-57, doi:10.70177/health.v4i3.3746.