ABEYSINGHE, A. M. P. B.; JAYATILLEKE, B. G.; ATHAPATTU, B. C. L.; GAMINI, L. P. S. Costing of a Blended Course at the Open University of Sri Lanka: An Empirical Study. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 24, n. 1, p. 37–50, 2015. Disponível em: https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/4189. Acesso em: 6 may. 2024.