| Type |  Book |
| ชื่อเรื่อง | Research design : qualitative, quantitative, and mixed methods approaches / John W. Creswell, J. David Creswell |
| ผู้แต่ง | Creswell, John w |
| ISBN | 9781506386706 (pbk.) |
| | 9781506386706 2550 |
| พิมพลักษณ์ | Thousand Oaks : SAGE Publications, c2018 |
| ครั้งที่พิมพ์ | 4th ed |
| | 5th ed |
| รูปเล่ม | xxv, 275 p. : ill |
| หัวเรื่อง | Research design --Qualitative [] |
| | Research design |
| | Research design --Mixed methods approaches [] |
| | Research design --Quantitative [] |
| | Social sciences --Research --Methodology [] |
| | Social sciences --Researchxmethodology [] |
| | Social sciences --Statistical methods [] |