| 个人简介 | |
|---|---|
 Prof. Rajiv Kumar Distt. Hoshiarpur, Panjab University, India |
|
| 简介： DR. RAJIV KUMAR Assistant Professor, Department of Physics, Goswami Ganesh Dutt Sanatan Dharam (G.G.D.S.D.) College, Hariana, Hoshiarpur, Punjab – 144 208, India | |
