Suwadi, Suwadi, and Ari 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 12, no. 1 (January 11, 2022): 1032-1040. Accessed April 20, 2026. https://enrichment.iocspublisher.org/index.php/enrichment/article/view/352.