Extraction of Psychological Effects of COVID-19 Pandemic through Topic-Level Sentiment Dynamics. - Abdul Razzaq; Touqeer Abbas; Sarfraz Hashim; Salman Qadri; Imran Mumtaz; Najia Saher; Muzammil Ul Rehman; Faisal Shahzad; Syed Ali Nawaz (Complex., 2022)