https://www.instructables.com/Eco-Printing-With-Rust-Vinegar/
https://wendyfe.wordpress.com/plants-for-eco-dyeing-and-eco-printing/
https://www.fiberartsy.com/eco-printing-fabric/
eco color av Flint https://books.google.co.id/books?printsec=frontcover&vid=ISBN9781741960792&redir_%20esc=y#v=onepage&q&f=false