ZĪVARTS, Juris. Higher Education Provided by the Service Warranty. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, Rezekne, Latvia, v. 2, p. 472–478, 2015. DOI: 10.17770/sie2012vol2.525. Disponível em: https://archive-journals.rtu.lv/sie/article/view/719.. Acesso em: 11 mar. 2026.