Hutajulu, L.B. , Ermawati , W.J. dan Slamet, A.S. 2022. Factors and Strategies Affecting and Improving Financial Performance of Old Age Protection. International Journal of Social Science and Business. 7, 1 (Des 2022), 105–114. DOI:https://doi.org/10.23887/ijssb.v7i1.52570.