Social research methods：Qualitative and quantitative approaches /: Social Research Methods:Qualitative and Quantitative Approaches 并列题名：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 an introduction to qualitative and quantitative approaches Social Research Methods:Quantitative and Qualitative Approaches and Applications combining qualitative and quantitative approaches 并列题名：Social Research Methods:Quantitative and Qualitative Approaches and Applications qualitative and quantitative approaches