Suwadi, S., and A. Syahputra. “The Effect of Women’s Savings and Loans (SPP) in Improving the Economy and Family Income in the District Dolok Masihul, Serdang Bedagai Regency.”. Enrichment : Journal of Management, Vol. 12, no. 1, Jan. 2022, pp. 1032-40, doi:10.35335/enrichment.v12i1.352.