Statistik Perusahaan hak pengusahaan hutan = Statistics of forest consession estate 1995
Statistik perusahaan dan pengusahaan hutan = Statistics of forest concession estate 1994
Statistik perusahaan hutan tanaman industri = Statistics of timber estate 1994
Statistik Perusahaan Hutan Tanaman Industri = Statistics of Timber Estate 1995
Statistik Perusahaan Hutan Tanaman Industri = Statistics of Timber Estate 1996