NurjannahS., AmzuE., and SunkarA., “PERAN KAWASAN BERNILAI KONSERVASI TINGGI BAGI PELESTARIAN KEANEKARAGAMAN HAYATI DI PERKEBUNAN KELAPA SAWIT PROVINSI RIAU”, J-RKPL, vol. 3, no. 1, pp. 68-77, Feb. 2017.