Senadeera, P., Z. Xie, and N. S. Dogan. “TWO STAGE ON OFF KEYING CLASS A RF POWER AMPLIFIER IN 0.18μm CMOS TECHNOLOGY”. International Journal of Research -GRANTHAALAYAH, vol. 8, no. 11, Nov. 2020, pp. 15-21, doi:10.29121/granthaalayah.v8.i11.2020.2067.