พุกอินทร์ อ. อ. Nam Phi Steel – Thai Sustainable Quality Steel. Research Journal Phranakhon Rajabhat : Science and Technology, [S. l.], v. 12, n. 1, p. 120–128, 2017. Disponível em: https://li01.tci-thaijo.org/index.php/PRRJ_Scitech/article/view/72181. Acesso em: 29 aug. 2026.