Khoir Rambe, U., Damanik, N., & M Harahap, A. (2020). The Struggle for Spiritual Authority from the Holy Land to Indonesia: Reference from the Tarekat Naqshabandiyya Jabal Hindi (TNJH) in North Sumatra. Teosofi: Jurnal Tasawuf Dan Pemikiran Islam, 10(2), 204–225. https://doi.org/10.15642/teosofi.2020.10.2.204-225