ABEYSINGHE, A.; JAYATILLEKE, B.; ATHAPATTU, B. C. L.; GAMINI, L. Historical perspectives on costing of ODL courses: re-evaluate the implement at the Open University of Sri Lanka. Advances in Social Sciences Research Journal, [S. l.], v. 3, n. 13, 2016. DOI: 10.14738/assrj.313.2548. Disponível em: http://116.203.177.230/index.php/ASSRJ/article/view/2548. Acesso em: 29 sep. 2024.