M. A. Raheem, S. Shaik, A. Majid, S. ur Rehman, and S. Arif, “Design of Low-Power 2.5 GHz Integer-N Frequency Synthesizer”, IJET, vol. 7, no. 4.6, pp. 320–324, Sep. 2018, doi: 10.14419/ijet.v7i4.6.30917.