Priyandes, A. “POLICY IMPLEMENTATION EVALUATION OF THE ENVIRONMENTAL DEVELOPMENT PROGRAM FOR IMPROVING THE ENVIRONMENTAL QUALITY: At PT. Krakatau Steel, Cilegon City”. Jurnal Green Growth Dan Manajemen Lingkungan, Vol. 3, no. 1, Dec. 2014, pp. 27 -39, doi:10.21009/jgg.031.03.