S. K., SnigdhaSnigdhaS. K.2025-10-132025-10-132025-07-019.78E+12https://www.penguin.co.in/book/longform-2025/https://repository.iitgn.ac.in0/handle/IITG2025/33063en-USBook Chapterpp. 243-253123456789/311