1. ISO/IEC 17025, General requirements for competence of testing and calibration laboratories, ISO, Geneva, 2017
2. S. K. Jha, Vandana Pulhani, S. J. Sartandel, Sanu S. Raj, Sugandhi Suresh, Madhuparna Dutta, Moushumi Chaudhury, Rupali Karpe, V. M. Joshi, R. H. Pillay and R. M. Tripathi, Lessons learnt from participation in international intercomparison exercise for environmental radioactivity measurement, BARC External Report BARC/2016/E009, 2016.
3. ISO 13528, Statistical methods for use in proficiency testing by inter-laboratory comparisons, ISO, Geneva, 2015.
4. W.P. Cofino and D.E. Wells, Design and evaluation of the QUASIMEME inter-laboratory performance studies: a test case for robust statistics. Mar. Pollut. Bull., 29 (1994) 149–158.
5. Michael Thompson, Stephen L.R.. Ellison and Roger Wood, The International Harmonized Protocol for the proficiency testing of analytical chemistry laboratories. Pure Appl. Chem., 78(1) (2006) 145–196.