Some reference books about low-power design
For your reference;
1.Low Power Design in Deep Submicron Electronics
By Wolfgang Nebel & Jean Mermet
Kluwer Academic Publishers 1996
ISBN: 0-7923-4569-X
2.Low-Voltage/Low-Power Integrated Circuits and Systems
: Low-Voltage Mixed-Signal Circuits
By Edgar Sanchez-Sinencio & Andreas G. Andreou
IEEE PRESS 1999
ISBN:0-7803-3446-9
3.Practical Low Power Digital VLSI Design
By Gary K. Yeap
Kluwer Academic Publishers 1998
4.Advanced Low-Power Digital Circuit Techniques
By Muhammad S. Elrabaa , Issam S. Abu-Khater & Mohamed I. Elmasry
Kluwer Academic Publishers 1997
5.Low Power Design Methodologies
By Jan M. Rabaey & Massoud Pedram
Kluwer Academic Publishers 1996