Fiqratul Aulia, Fika, et al. “PENILAIAN PRODUK KANCING BERBENTUK HURUF DENGAN BAHAN DASAR LIMBAH STYROFOAM”. Practice of Fashion and Textile Education Journal, vol. 1, no. 1, June 2021, pp. 1-8, doi:10.21009/pftej.v1i1.21499.