Title: Kānsamrūat khwāmtō̜ngkān rǣngngān, rō̜p thī 1-4, Makarākhom-Thanwākhom 2513, Čhangwat Lampāng, Mǣ Hō̜ng Sō̜n, Lamphūn, Chīang Rāi, Phrǣ, Nān, Chīang Mai
Description: Survey of demand for labor in seven northern provinces of Thailand, 1970.