Djakfar, F. A., and P. A. Permatasari. “Ngabulâ Vis-À-Vis Modernity: Tabarruk Practice in Bangkalan Pesantren”. KARSA Journal of Social and Islamic Culture, Vol. 28, no. 2, Dec. 2020, pp. 337-62, doi:10.19105/karsa.v28i2.4026.