E. Ine Sitompul, F. . Febriyanti Tarigan, B. . Silsila Tabrani, and D. Faisal Mirza, “The Effect of Partnership Loans, Books and Types of Business on the Productivity of MSME Partnership Partner PT. Perkebunan Nusantara III Medan”, jrssem, vol. 1, no. 10, pp. 1592 –, May 2022.