RAHMI RISMAYANI DERI; MUTIARA; YANI RIANTI. Perancangan Produk Sol Sepatu Berbasis Ampas Kopi Sebagai Inovasi Circular Economy Industri Ramah Lingkungan. Jejak digital: Jurnal Ilmiah Multidisiplin, [S. l.], v. 1, n. 3, p. 538–544, 2025. DOI: 10.63822/jg4ypm86. Disponível em: https://indojurnal.com/index.php/jejakdigital/article/view/164. Acesso em: 16 oct. 2025.