KIŠČENKO, Ilze; GRABUSTS, Pēteris. „THE SONG NOTEBOOK” APPLICATION. HUMAN. ENVIRONMENT. TECHNOLOGIES. Proceedings of the Students International Scientific and Practical Conference, Rezekne, Latvia, n. 20, p. 112–114, 2016. DOI: 10.17770/het2016.20.3546. Disponível em: https://journals.rta.lv/index.php/HET/article/view/3546.. Acesso em: 5 may. 2024.