References: Combinational Building Blocks

1. Multiplexer - Wikipedia - Comprehensive overview of multiplexer design, selection logic, and applications.

2. Binary decoder - Wikipedia - Detailed explanation of decoder circuits and their use in address decoding.

3. Adder (electronics) - Wikipedia - Comprehensive coverage of half adders, full adders, ripple-carry adders, and carry-lookahead adders.

4. Digital Design (6th Edition) - M. Morris Mano and Michael Ciletti - Pearson - Chapter 5 covers combinational logic modules including multiplexers, decoders, encoders, and adders.

5. Multiplexers - All About Circuits - Detailed coverage of MUX design, cascading, and using multiplexers to implement Boolean functions.