I am a researcher and lecturer from Applied Geology Research Group, Faculty of Earth Sciences and Technology, Bandung Institute of Technology, Indonesia. My current focus is how to provide the hydrostratigraphy of volcanic aquifers in Bandung area. The research is based on environmental isotope measurement in groundwater and morphometry. My work consists of hydrochemical measurements. I am using multivariate statistical methods to provides more quantitative foundation for the analysis and more insight into the groundwater behaviour. My research interests cover the following subject: Research interest: hydrochemistry, multivariate analysis, and R programming.