Neuman, W. Lawrence
Social Research methods: Qualitative and Quantitative Approaches - 6th ed. - New Delhi ; Pearson Education , 2006. - viii, 592p.:
Research Method
301.072
Social Research methods: Qualitative and Quantitative Approaches - 6th ed. - New Delhi ; Pearson Education , 2006. - viii, 592p.:
Research Method
301.072