ศรีทอง ช. The development of a semi-automatic extrusion machine for producing the plant pots from coffee grounds. Frontiers in Engineering Innovation Research, [S. l.], v. 1, p. 13–23, 2015. Disponível em: https://ph01.tci-thaijo.org/index.php/jermutt/article/view/242052. Acesso em: 3 sep. 2026.