| Type |  Book |
| ชื่อเรื่อง | An implication of opium replacement crops to agro socio economic of hilltribe small farmer, Ban Pa Loh and Ban San Pa Kia, Chiang Dao District, Chiangmai 1991 / Prayong Saiprasert |
| ผู้แต่ง | Saiprasert, Prayong |
| พิมพลักษณ์ | Chiangmai : Department of Economics and Agricultural Cooperatives. Faculty of Agricultural Business. Maejo Institute of Agricultural Technology , 1991 |
| รูปเล่ม | vi, 122 p. : ill |
| หัวเรื่อง | Hill farming --Thailand, Northern --Economic aspects [] |
| | Mountain peoples --Thailand, Northern --Economic conditions [] |
| | Opium poppy growers --Thailand, Northern [] |