Crude oil has been one of the most important natural resources since 1856, which was the
first time a world refinery was constructed. However, the problem associated with trapped oil …

This research aimed to investigate the distribution, volume, and concentration of iron sand at
Wari Ino Beach Tobelo. The resistivity method with Werner-Schlumberger configuration was …

To gain deeper and more understanding the research on rice husk SiO 2 in Indonesia, in
this study, a bibliometric software VOSViewer was used to analysis relevant literature in the …