Figure Open Access
Irawan, Dasapta Erwin
This research spectrum was derived from Google Scholar search limited to earth science and environmental science. The search is conducted in May 2017. We used "Freemind" open source app to make the figure (https://sourceforge.net/projects/freemind/).
Method: literature review via scientometric
Database: Google Scholar, filter: Cikapundung (intitle)
App: Freemind, Google Sheets