Massiri, Sudirman Daeng, et al. “Institutional Sustainability Barriers of Community Conservation Agreement As a Collaboration Management in Lore Lindu National Park”. Jurnal Manajemen Hutan Tropika, vol. 21, no. 3, Dec. 2015, pp. 147-54, https://journal.ipb.ac.id/jmht/article/view/10796.