Title: Kānsamrūat khwāmtō̜ngkān rǣngngān rō̜p thī 2-4, 1 Mēsāyon-31 Thanwākhom 2513, Čhangwat Nakhō̜n Sawan, ʻUthai Thani, ʻĀng Thō̜ng, Sing Burī, Chai Nāt, Lop Burī, ʻAyutthayā
Description: Survey of demand for labor in seven central provinces of Thailand, 1970.