1. Background Sasak tribe is the native inhabitant and constitutes the majority in Lombok, West Nusa Tenggara, Indonesia. As a native inhabitant, the tribe had a cultural system as it was recorded in the book of Nagara Kartha Gama written by Empu Nala of Majapahit. In the book, the Sasak tribe is called “Lomboq Mirah Sak-Sak Adhi.” If the Sasak tribe had the system when the book was written, its ability to keep exist until now ...