| Type |  Book |
| ชื่อเรื่อง | A study on the difference in costs between animal labor and mechanical equipment and potentiality for mechanization of Phra Buddhabat Land Settlement Boonma / Suphan tosunthorn, Chamnien Boonma |
| ผู้แต่ง | Suphan Tosunthorn |
| พิมพลักษณ์ | Bangkok : Department of Agricultural Economics, Faculty of Economics to Business Ad., Kasetsart University, 1974 |
| รูปเล่ม | 25 p |
| หัวเรื่อง | Animal labor --Costs [] |
| | Farm mechanization --Costs [] |