Mohd Kamel, M. K., and Y. C. Wong. “Evaluation of Charge Transfer Blocks in CP Circuit Topologies”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 9, no. 2-7, Sept. 2017, pp. 161-6, https://jtec.utem.edu.my/jtec/article/view/2612.