GIANO, J.; ABU, R. .; MUKHNIZAR, M. Analysis of the Tempering Process Results with Temperature Variations on the Mechanical Properties of AISI 4340 Material Hardness. TOFEDU: The Future of Education Journal, [S. l.], v. 4, n. 8, p. 4814–4820, 2025. DOI: 10.61445/tofedu.v4i8.1182. Disponível em: http://journal.tofedu.or.id/index.php/journal/article/view/1182. Acesso em: 8 dec. 2025.