Textbooks

1. Digital Design
BY: Morris Mano and Michael Ciletti - Chapter 4 (Combinational Logic)
Comprehensive coverage of multiplexer circuits, data selection, and combinational logic design.

2. Digital Logic and Computer Design
BY: Morris Mano - Chapter 4
Fundamental concepts of digital logic design including multiplexers and data routing systems.

3. Digital Electronics: Principles, Devices and Applications
BY: Anil K. Maini - Chapter 6
Practical approach to digital circuit design with detailed analysis of multiplexer and demultiplexer circuits.

4. Digital Systems: Principles and Applications
BY: Ronald J. Tocci, Neal S. Widmer, and Gregory L. Moss - Chapter 9
Modern approach to digital systems design including MSI logic circuits and multiplexer applications.

5. Fundamentals of Digital Logic with VHDL Design
BY: Stephen Brown and Zvonko Vranesic - Chapter 6
Advanced coverage of combinational circuits with emphasis on multiplexer design and implementation.

Online Resources

1. Digital Logic Design Tutorial
URL: https://www.electronics-tutorials.ws/combination/comb_2.html
Comprehensive online tutorial covering multiplexer fundamentals and applications.

2. Multiplexer Design Examples
URL: https://www.geeksforgeeks.org/multiplexers-in-digital-logic/
Practical examples and implementations of various multiplexer configurations.

3. IEEE Xplore Digital Library
URL: https://ieeexplore.ieee.org/
Research papers on advanced multiplexer designs and applications in modern digital systems.

Research Papers

1. "High-Speed Multiplexer Design Techniques"
Authors: Various IEEE Publications
Advanced techniques for optimizing multiplexer performance in high-frequency applications.

2. "Multiplexer Applications in Digital Signal Processing"
Authors: Multiple Research Papers
Applications of multiplexers in DSP systems and communication networks.

Standards and Documentation

1. IEEE Standard 91-1984
IEEE Standard Graphic Symbols for Logic Functions including multiplexer symbol specifications.

2. TTL Data Book
BY: Texas Instruments
Hardware specifications and implementation details for standard multiplexer ICs.