Gedganda Sangsuwan. 1995. An economic analysis of agricultural planning for crop production. Graduate School, Kasetsart University;
Gedganda Sangsuwan. (1995) An economic analysis of agricultural planning for crop production . Kasetsart University/Bangkok.
Gedganda Sangsuwan. An economic analysis of agricultural planning for crop production. . Bangkok:Kasetsart University, 1995.
Gedganda Sangsuwan. (1995) An economic analysis of agricultural planning for crop production . Kasetsart University/Bangkok.