Santi Rahma Dewi, and Eny Maryanti. “The Implementation of Green Accounting Based on University Social Responsibility (USR) in Muhammadiyah University of Sidoarjo”. Journal of Economics, Business, and Government Challenges, vol. 1, no. 1, June 2018, pp. 01-09, doi:10.33005/ebgc.v1i1.4.