N. Abdul Rahman, Z. A. Zukarnain, S. Husin, M. Jamaludin, N. A. M. Zin, and B. H. Ahmad, “A Preliminary Sentiment Analysis on Digital Barriers among Senior Citizens During Covid-19 Pandemic”, IMBR, vol. 16, no. 3(I)S, pp. 241-249, Oct. 2024.