Y. Yusutria, H. C. A. Kistoro, Y. Yuherman, and A. Azwar, “Five Souls-Based Character Education at Tahfizul Quran Boarding School”, IJIES, vol. 5, no. 2, pp. 252–266, Jan. 2023, doi: 10.33367/ijies.v5i2.3075.