VARAPRASAD, K.; ASHOK, D. J. Location Values -Based Services Based On Geo-Document on User Search Recommendation. International Journal of Engineering and Computer Science, india, v. 6, n. 11, p. 22844–22847, 2017. Disponível em: https://ijecs.in/index.php/ijecs/article/view/2620. Acesso em: 1 may. 2024.