Time-series analysis 38 ISO 9000 Series Standards 27 Standards 25 Dissertations 17 Dissertations, Academic 16 Quality control 16 Quality assurance 13 Management 12 Mathematical models 11 ISO 14000 Series Standards 10 Total quality management 9 Environmental aspects 7 Environmental management 7 Forecasting 7 Prices 7 Islam 6 Econometric models 5 Industrial management 5 Statistical methods 5 Religious aspects 4 Fourier series 3 Machine learning 3 Manufactures 3 Stock exchanges 3 Stocks 3 Students 3 Business cycles 2 Case studies 2 Computer programs 2 Construction industry 2