Wanigasooriya, Priyanwada2015-10-012015-10-012009Wanigasooriya, Priyanwada (2009) Use of Online Public Access Catalogue (OPAC) in Sri Lankan national university libraries. Journal of Social Sciences Sri Lanka, University of Kelaniya, 01(03): 357-368.2279-568http://repository.kln.ac.lk/handle/123456789/9866enArticle