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SDNB
300 Social sciences333.7 Natural resources, energy and environment360 Social services, association510 Mathematics600 Technology (Applied sciences)620 Engineering & allied operations621.3 Electrical Engineering, Electronics650 Management & auxialiary services670 Manufacturing700 The arts890 Literatures of other languages900 History950 General history of Asia Far East960 General history of AfricaK Children's and youth literature