Potential of Eco-Efficiency Application to Small-To-Medium Industry of Tofu Cluster in Pesalakan, Adiwerna Village, Adiwerna District, Tegal RegencySri Suryoko, Sudharto P Hadi and PurwantoE3S Web Conf., 125 (2019) 02013DOI: https://doi.org/10.1051/e3sconf/201912502013