Satish Chandra Shankaram, & Shobha Kumari. (2021). STUDY OF AIR QUALITY AND DIFFICULTY IN CONCENTRATION IN INSTITUTIONAL AREAS OF GOPALGANJ, BIHAR. JournalNX - A Multidisciplinary Peer Reviewed Journal, 7(12), 367–370. https://doi.org/10.17605/OSF.IO/5ZA4H