SHARMA, R. K. National Geographic Information Infrastructure: A Perspective View. Journal on Geoinformatics, Nepal, [S. l.], v. 1, n. 1, p. 1–5, 2002. DOI: 10.3126/njg.v1i1.51468. Disponível em: https://nepjol.info/index.php/NJG/article/view/51468. Acesso em: 27 jul. 2024.