The Tuple <Subject, Need, Goal, Task, Method> and the Propertie sof its Basic Elements. Advances in Systems Science and Applications, [S. l.], v. 26, n. 3, p. 186–201, 2026. DOI: 10.25728/assa.2026.2026.2.2172. Disponível em: https://ijassa.ipu.ru/index.php/ijassa/article/view/2172. Acesso em: 24 oct. 2026.