Sitompul, Rosalinda Septiani, and Binur Panjaitan. “Educational Governance Based on Heart Management at Negeri Elementary School 173529 Tampahan, Toba Regency”. Jurnal Mantik 6, no. 2 (July 6, 2022): 1567-1573. Accessed July 27, 2026. https://iocscience.org/ejournal/index.php/mantik/article/view/2574.