SHARMA, R. K. Survey Department at the Cross Roads. Journal on Geoinformatics, Nepal, [S. l.], v. 10, p. 37–42, 2011. DOI: 10.3126/njg.v10i0.23191. Disponível em: https://www.nepjol.info/index.php/NJG/article/view/23191. Acesso em: 22 jan. 2022.