.Hardjanto. “Model Struktural Sistem Usaha Kayu Rakyat (The Structural Model of Private Owned Timber Bussiness System)”. Jurnal Manajemen Hutan Tropika 12, no. 2 (1). Accessed May 2, 2024. https://jurnal.ipb.ac.id/index.php/jmht/article/view/2858.