FENG GUANGXUE. Adult 12 section steel step hardened - but frame and heat treated. SJIS-P, [S. l.], v. 32, n. 2, p. 1–42, 2020. Disponível em: http://sjis.scandinavian-iris.org/index.php/sjis/article/view/37. Acesso em: 18 may. 2024.