MACKUS, Austris; SNIPKIS, Andris; ZNOTIŅA, Inta; JURĀNE, Ieva. Website "Technical drawing" for development of spatial and constructive thinking. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, Rezekne, Latvia, v. 4, p. 450–456, 2015. DOI: 10.17770/sie2015vol4.406. Disponível em: https://journals.rta.lv/index.php/SIE/article/view/406.. Acesso em: 4 may. 2024.