1. Gusliana, H. B. (2011). Efforts to Protect the Traditional Land Forest of the Riau Malay Indigenous Peoples in the Province of Riau. Journal of Legal Studies, 2(1): 133–142.
2. Harsono, B. (2008). Indonesia Agrarian Law in the history of the Legislation – Law on Agrarian subject matter content and implementation. Jakarta: Djambatan.
3. Ismi, H. (2012). Recognition and Protection of Legal Rights Indigenous Communities of Ulayat Land In The Effort National Law Renewal. Journal of Legal Science, 3(1): 1–12.
4. Ismi, H. (2016). Customary Land Use Rights in Coal Natural Resource Management Linked to Protection of the Customary Law of Legal Communities in the Framework of Developing Indonesian Land Law. Doctoral dissertation. Graduate School of the University of Padjajaran, Bandung.
5. Ismi. H. (2011). Recognition and legal protection of indigenous peoples over land: Renewal efforts in the customary national law. Journal of the Science of Law, 3(1): 15–29.