URL https://www.researchgate.net/profile/Majid-Habibi-3/publication/220670122/figure/fig3/AS:669993494642706@1536750305622/2-in-4-decoder-top-and-4-in-2-encoder-bottom-Boolean-circuits_Q640.jpg
URL2 https://www.researchgate.net/figure/2-in-4-decoder-top-and-4-in-2-encoder-bottom-Boolean-circuits_fig3_220670122
