Idris, A. R., Ariadi, L. M., Yani, Z., Firmanto, A. and Alaini, N. N. (2026) “Eco-Custom: Spirituality-Based Nature Conservation in the Usada Sasak Manuscript of Sasak Community, Lombok, Indonesia”, Ulumuna, 30(1), pp. 274-304. doi: 10.20414/ujis.v30i1.1353.