Putri Purwaningrum, J., Purbasari, I., & Puspita Rini, G. (2022). Innovation of a Grinder Machine for Improvement of Waste Treatment for Craftsmen at Mayong Lor Village, Jepara. KnE Social Sciences, 7(19), 392–399. https://doi.org/10.18502/kss.v7i19.12459