Thilakarathne, L.R.Daundasekera, W.B.2013-06-242013-06-242009Ceylon Journal of Science (Physical Sciences), 15:p.71-78https://dl.nsf.gov.lk/handle/1/9844StatisticsQuality control chartsFraction non-confirming quality control chartDesignSample sizeSampling frequencyControl limitsCost effectivenessEconomic design of fraction non-confirming quality control chartA