"Geography for CSS, PMS, PCS, State Civil Services" by Surender Singh offers a comprehensive guide to mastering geographical concepts for various civil service examinations. Singh provides detailed coverage of topics...
"Optics Textbook" by Dr. N. Subrahmanyam provides a thorough understanding of optical principles, applications, and technologies. Dr. Subrahmanyam's expertise in optics shines through in this comprehensive guide, which serves as...