Palapan Kampan. 1998. The effects of short-course occupational training on seasonal migration, employment and income. , National Institute of Development Administration;
Palapan Kampan. (1998) The effects of short-course occupational training on seasonal migration, employment and income . National Institute of Development Administration/Bangkok.
Palapan Kampan. The effects of short-course occupational training on seasonal migration, employment and income. . Bangkok:National Institute of Development Administration, 1998.
Palapan Kampan. (1998) The effects of short-course occupational training on seasonal migration, employment and income . National Institute of Development Administration/Bangkok.