Title: Māttrakān khūapkhum kānphrǣ rabāt khō̜ng fin nai chon klumnō̜i thāng Phāk Nư̄a khō̜ng Prathēt Thai
Description: On measures for controlling spread of opium cultivation particularly among minority groups in northern Thai highlands.
Subjects: Control, Drug control, Opium poppy
Places: Northern Thailand