Maria Ayu Florenza Monar and Prilly Parrhesia Edong Rumissing, “A Comprehensive Systematic Review of Social Determinants in Maternal Mortality Rates in Developing Countries”, the int. j. of med. science and health, vol. 43, no. 1, pp. 138–208, Apr. 2026, doi: 10.70070/h17j2h20.