A LOW-COST PRINTED CIRCUIT BOARD DESIGN TECHNIQUE AND PROCESSES USING FERRIC CHLORIDE SOLUTION. Nigerian Journal of Technology, [S. l.], v. 39, n. 4, p. 1223–1231, 2020. Disponível em: https://www.nijotech.com/index.php/nijotech/article/view/2467. Acesso em: 21 apr. 2026.