Prawat Wettayaprasit. 1992. A program model for secondary agricultural education programs in Thailand. , University of Missouri-Columbia;
Prawat Wettayaprasit. (1992) A program model for secondary agricultural education programs in Thailand . University of Missouri-Columbia/Missouri.
Prawat Wettayaprasit. A program model for secondary agricultural education programs in Thailand. . Missouri:University of Missouri-Columbia, 1992.
Prawat Wettayaprasit. (1992) A program model for secondary agricultural education programs in Thailand . University of Missouri-Columbia/Missouri.