Barbosa, J.L.V. et al. 2018. INTERACT: A model based on contexts to motivate interactions in Educational Social Networks: A model based on contexts to motivate interactions in Educational Social Networks. Observatory Journal. 4, 3 (Apr. 2018), 399–420. DOI:https://doi.org/10.20873/uft.2447-4266.2018v4n3p399.