Title: Penyajian informasi lingkungan hutan tanama industri unit PT. Putra Lika Perkasa, Propinsi Dati I Sumatera Utara
Description: Environmental impact study of landcleaning for monocultural purposes in the forest concession of PT. Putra Lika Perkasa, Kecamatan Sei Kanan and Kecamatan Kota Pinang, Kabupaten Labuhan Batu, Sumatera Utara Province.