Satria, Boedi, et al. “Implementation of Presidential Instruction Number 3 of 2014 by the Regional Government in Optimizing the Collection of Zakat, Infaq, and Sedekah for ASN in Bukittinggi City”. Muttaqien; Indonesian Journal of Multidiciplinary Islamic Studies, vol. 7, no. 1, Jan. 2026, pp. 57-70, doi:10.52593/mtq.07.1.05.