WULANDARI, D.; WITJAKSONO, M.; SOSECO, T.; NARMADITYA, B. S. The Development of Productive Economy Cluster through Siparti 3-S and Triple Helix in Kabupaten Lumajang, Indonesia. International Journal of Economics and Financial Issues, [S. l.], v. 7, n. 2, p. 25–31, 2017. Disponível em: https://www.econjournals.com/index.php/ijefi/article/view/3796. Acesso em: 25 may. 2022.