RESTULINGTYAS, L. H.; RICKY, R.; TARIGAN, Z. J. H. The Impact of Chain of Servant Leadership on the Effectiveness of Classroom Instruction. Aletheia Christian Educators Journal, [S. l.], v. 6, n. 2, p. 113–123, 2025. DOI: 10.9744/aletheia.6.2.113-123. Disponível em: https://aletheia.petra.ac.id/index.php/aletheia/article/view/356. Acesso em: 5 jun. 2026.