Analysis of the Influence of Leadership on the Performance of Madrasah Ibtidaiyah Negeri 3 Serdang Bedagai Teachers. - Musyrifah; Sinaga, Fasrah; Hanafi, Muhammad Yusuf; Nurhidil, Alfi; Ikhsan, Muhammad; Suprayitno, Eddi (Journal of Finance & Business Digital, 2026)