Hardiyanto, N., Choirul Afif, N., Bayu Aji Sumantri, M., & Haizam Mohd Saudi, M. (2018). Systemic Approach to Solve Problem of Managing Zakat in Contemporary Muslim Society in Indonesia. International Journal of Engineering and Technology, 7(4.34), 261-266. https://doi.org/10.14419/ijet.v7i4.34.23903