Radjak, L. I., & Lantowa, F. D. (2018). Optimization of Fund Resources in the Business Charity of Muhammadiyah in the Gorontalo Region. Ekuilibrium : Jurnal Ilmiah Bidang Ilmu Ekonomi, 13(2), 85–98. https://doi.org/10.24269/ekuilibrium.v13i2.2018.pp85 - 98