Social Research Methods:Quantitative and Qualitative Approaches and Applications 并列题名：Social Research Methods:Quantitative and Qualitative Approaches and Applications Social research methods：Qualitative and quantitative approaches /: Social research methods：qualitative and quantitative approaches：定性研究与定量研究 Social work research methods qualitative and quantitative applications Social Research Methods:Qualitative and Quantitative Approaches 并列题名：Social Research Methods:Qualitative and Quantitative Approaches