(Major Landforms) หมายถึง ลักษณะภูม

(Major Landforms) refers to the visible appearance is markedly different, there are 4 major types include Plains plateau. The mountains and hills, etc.(Minor Landform) refers to the geography that appear as a different format on the Huai River as parkland, lakes, streams and swamps the Canal Islands, etc.

(Major Landforms) means the topography that appears to be various forms markedly. More importantly, there 4 types including plain. Plateau mountains and hills, etc.

.(Minor Landform) means the topography that appears to be important in various forms, followed, such as rivers, streams, rivers, Nong canal. Marshes, lakes, bays and islands, etc.!