Book Chapters

1. CuO Nanomaterials for Sensor Applications, Girish Kumar, Rajesh Kumar, Ahmad Umar, Yao Wang, Iqbal M. I. Ismail, Suvarcha Chauhan, and M. S. Chauhan, Nanomaterials-based Flexible and Multifunctional Sensors, Edited by Eric Singh and Hari Singh Nalwa (American Scientific Publishers), Chapter-3 (ISSN: 1-58883-257-0).

2.     Physical Vapor Deposition of ZnO Nanostructured Thin Films: Properties and Applications, Rajesh Kumar, Girish Kumar, Ahmad Umar. Encyclopedia of Semiconductor Nanotechnology Edited by Ahmad Umar (American Scientific Publishers) Vol-5, Chapter 12 (ISBN No. 1-58883-204-X).

3. Applications of ZnO Nanomaterials for Dye-Sensitized Solar Cells and Environmental Remediation, Ahmad Umar, M. S. Akhtar, Rajesh Kumar, Girish Kumar, Encyclopaedia of Semiconductor Nanotechnology Edited by Ahmad Umar  (American Scientific Publishers), Vol.-1, Chapter-11   (ISBN No. 1-58883-200-7).

4. Nanostructured Zinc Oxide: From Growth to Applications, Ahmad Umar, Rajesh Kumar, Yoon-Bong Hahn, Girish Kumar, Encyclopaedia of Semiconductor Nanotechnology Edited by Ahmad Umar  (American Scientific Publishers), Vol.-5, Chapter-11  (ISBN No. 1-58883-204-X).

5. Physical An Overview of Chaos in Oscillatory Chemical Reactions: The Mathematical Approximation of the Oslen Model” Girish Kumar, Rajesh Kumar, Mathematical Modeling with its Applications Edited by Bhanu Gupta (Sharma Pubications) , Chapter 7 (ISBN No. 978-93-5181-067-04).

6.     Synthesis  and  Characterization  of  Metal  Oxide  Nanomaterials  for Environmental Remediation, Rajesh Kumar, Ahmad Umar, in Smart Materials for Energy Storage and Environmental Applications Edited by Hyung-Shik Shin, M. Shaheer Akhtar and Sadia Ameen (LAP LAMBERT Academic Publishing OmniScriptum GmbH & Co. KG, Heinrich-Böcking-Str. 6-8, 66121, Saarbrücken, Germany) , Chapter 3 (ISBN No. 978-3-659-56539-8).