Latheef, N.A. and Thiruvengada Mani, T.K. 2019. Usage of Commercial and Open Source Digital Resources in Libraries: With Special Reference to Islamic Management Arts & Science Colleges of Tamil Nadu. Asian Journal of Information Science and Technology. 9, S1 (Feb. 2019), 1–5. DOI:https://doi.org/10.51983/ajist-2019.9.S1.232.