Oktavia, E., Lestari, V. D., Sirait, L. I., Arlym, L. T., & Silawati, V. (2026). Risk Factors And Complications Of Perinatal Mortality In High-Risk Pregnancies: A Systematic Literature Review . Borneo Nursing Journal (BNJ), 8(2), 559–578. https://doi.org/10.61878/bnj.v8i2.755