El-Borai, M. M. M., W. G. El-sayed, A. A. Badr, and A. T. Sayed. “Initial Value Problem for Stochastic Hyprid Hadamard Fractional Differential Equation: Hyprid Hadamard”. JOURNAL OF ADVANCES IN MATHEMATICS, vol. 16, Feb. 2019, pp. 8288-96, doi:10.24297/jam.v16i0.8113.