F. Setiati, Sulistyarini, Afandi, Imran, and Halida, “Transformational Leadership Strategies of a School Principal in Managing a Co-Curricular Program at a Remote Primary School: A Case Study of SD Negeri 33 Natai Bunjau, Sintang Regency”, j. pendidik. terap., vol. 4, no. 5, pp. 100–114, Nov. 2026.