SeptiawanH., Hariyadi-, and ThohariM. “ANALISIS PENGELOLAAN LINGKUNGAN PABRIK KELAPA SAWIT BATU AMPAR - PT. SMART Tbk. DALAM IMPLEMENTASI INDONESIAN SUSTAINABLE PALM OIL”. Jurnal Pengelolaan Sumberdaya Alam Dan Lingkungan (Journal of Natural Resources and Environmental Management), Vol. 4, no. 2, Dec. 2015, p. 136, doi:10.29244/jpsl.4.2.136.