| Type |  Book |
| ชื่อเรื่อง | Trekking through northern Thailand / Ada Guntamala, Kornvika Puapratum |
| ผู้แต่ง | Ada guntamala |
| ISBN | 9747047004 |
| พิมพลักษณ์ | Bangkok : Silkworm Books, 1991 |
| | Bangkok : Silkworm, c1991 |
| | Chiang Mai : Silkworm Books, c1992 |
| | Chiang Mai : Silkworm Books, 1992 |
| รูปเล่ม | 92 p. : ill. , maps ; 19 cm |
| หัวเรื่อง | Ethnology --Thailand, Northern [] |
| | Hiking --Thailand, Northern --Guidebooks [] |
| | Hiking --Thailand, Northern --Guide books [] |
| | Opium poppy |
| | Opium poppy --Thailand [] |
| | Opium trade --Thailand --History [] |
| | Opium --History [] |
| | Opium trade in Burma |
| | Opium trade in Laos |
| | Opium trade in Thailand |