1. Validation of Chromatographic Method of Analysis;Yuwono,2005
2. Analytical Aspects of High Performance Thin Layer Chromatography;Indrayanto,2011
3. High-Performance Thin Layer Chromatography for the Analysis of Medicinal Plants;Reich,2006
4. Reference material requirements for laboratories and the role of accreditation bodies
5. The importance of reference materials in doping-control analysis