Meilina, H. et al. 2013. Detection of Ethanol Adulteration in Citronellal Oil by using Near Infared Spectroscopy and Multivariate Data Analysis. International Journal on Advanced Science, Engineering and Information Technology. 3, 2 (Apr. 2013), 188–190. DOI:https://doi.org/10.18517/ijaseit.3.2.315.