Management -- Valuation -- 97 Congresses -- 74 Study and teaching 16 Religious aspects -- 14 Land use -- 13 Islam 12 more ... Management 12 Methodology 12 Finance -- 11 Government purchasing -- 11 Research 11 Business -- 10 Industrial management -- 10 Marketing -- 9 Real property -- 9 Statistical methods 9 Organization -- 8 Case studies 7 Leadership 7 Psychological aspects 7 Construction industry -- 6 Islam -- 6 Mathematical models 6 Programmed instructions 6 Congresess -- 5 Dictionaries 5 Law and legislation -- 5 Periodicals 5 Research -- 5 less ...