SAILAUBEKOV, N. T.; ABDYGAPPAROVA, S. B.; BAYTANAEVA, B. A.; SHAYHUTDINOVA, A. K. Evaluating the effectiveness of projects on the use of alternative energy sources. Journal of Economic Research & Business Administration, [S. l.], v. 106, n. 6, p. 24–29, 2015. Disponível em: https://be.kaznu.kz/index.php/math/article/view/487. Acesso em: 24 nov. 2024.