@incollection{Narayanan19,
author = {Nuggehalli Narayanachar Ramaprasad and Priya Narayanan},
title = {Volunteered Geographic Information System and Its Contribution in Service Sector Employment},
booktitle = {Geographic Information Systems and Science},
publisher = {IntechOpen},
address = {Rijeka},
year = {2019},
editor = {Jorge Rocha and Patrícia Abrantes},
chapter = {9},
doi = {10.5772/intechopen.82004},
url = {https://doi.org/10.5772/intechopen.82004}
}