Title: Rāingān sarup phon Kānprachum Sammanā rư̄ang Kānkǣkhai Panhā Chāokhao læ Kamčhat Kānplūk Phư̄t Sēptit Phāk Nư̄a
Description: Proceedings of Seminar on Hill People Problems and Narcotic Crop Cultivation Control in Northern Thailand.