BINTARA, Redyarsa Dharma et al. Pemodelan Desain Sol Sepatu dengan Inovasi Penambahan Wave Spring. Jurnal Energi Dan Manufaktur, [S.l.], v. 7, n. 2, july 2015. ISSN 2541-5328. Available at: <http://103.29.196.112/index.php/jem/article/view/14217>. Date accessed: 18 dec. 2025.