Title: Mǣ Čhan
Description: Author's letters to his relatives on activities of volunteers who worked for welfare of hill-tribes at Ban Pang Sa, Chiang Rai Province, Thailand, 1984-1985.
Subjects: Ethnology, Volunteer workers in community development
Places: Ban Pang Sa (Chiang Rai), Ban Pang Sa (Chiang Rai, Thailand), Thailand