1. AOAC (1993). The referee. Journal of AOAC International, 17, 5–9.
2. Aregbe, Y., Harper, C., Norgaard, J., De Smet, M., Van Nevel, L., & Smeyers, P., et al. (2003). IMEP-19 Trace elements in rice. EUR 20551 EN Report to Participants.
3. Determination of water content in bee’s pollen samples by Karl Fischer titration;Gergen;Food Control,2006
4. Grobecker, K. H., Rückold, S., & Anklam, E. (1999). Determination of the water content in milk powder. Report of a collaborative study performed in the period of June–July 1999. Report of the European Commission, EUR 19005 EN.
5. GUM Workbench (2001). The software tool for the expression of uncertainty in measurement. Grenzach-Wyhlen, Germany: Metrodata GmbH.