Somantri, Somantri, et al. “Implementing Green Industry Principles Through Ecoprint Batik Making: A Nature-Care Initiative in Elementary Education”. Proceedings International Conference of Bunga Bangsa, vol. 4, no. 1, Mar. 2026, pp. 285-99, https://journal.ljpi.bbc.ac.id/index.php/icobba/article/view/514.